ImsCall.java revision 818c09d7b55d3257e91e528749587349f7197e3f
1/* 2 * Copyright (c) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.ims; 18 19import com.android.internal.R; 20 21import java.util.ArrayList; 22import java.util.Iterator; 23import java.util.List; 24import java.util.Map.Entry; 25import java.util.Set; 26 27import android.content.Context; 28import android.net.Uri; 29import android.os.Bundle; 30import android.os.Message; 31import android.telecom.ConferenceParticipant; 32import android.telecom.Connection; 33import java.util.Objects; 34import android.util.Log; 35 36import com.android.ims.internal.ICall; 37import com.android.ims.internal.ImsCallSession; 38import com.android.ims.internal.ImsStreamMediaSession; 39import com.android.internal.annotations.VisibleForTesting; 40 41/** 42 * Handles an IMS voice / video call over LTE. You can instantiate this class with 43 * {@link ImsManager}. 44 * 45 * @hide 46 */ 47public class ImsCall implements ICall { 48 // Mode of USSD message 49 public static final int USSD_MODE_NOTIFY = 0; 50 public static final int USSD_MODE_REQUEST = 1; 51 52 private static final String TAG = "ImsCall"; 53 54 // This flag is meant to be used as a debugging tool to quickly see all logs 55 // regardless of the actual log level set on this component. 56 private static final boolean FORCE_DEBUG = false; /* STOPSHIP if true */ 57 58 // We will log messages guarded by these flags at the info level. If logging is required 59 // to occur at (and only at) a particular log level, please use the logd, logv and loge 60 // functions as those will not be affected by the value of FORCE_DEBUG at all. 61 // Otherwise, anything guarded by these flags will be logged at the info level since that 62 // level allows those statements ot be logged by default which supports the workflow of 63 // setting FORCE_DEBUG and knowing these logs will show up regardless of the actual log 64 // level of this component. 65 private static final boolean DBG = FORCE_DEBUG || Log.isLoggable(TAG, Log.DEBUG); 66 private static final boolean VDBG = FORCE_DEBUG || Log.isLoggable(TAG, Log.VERBOSE); 67 // This is a special flag that is used only to highlight specific log around bringing 68 // up and tearing down conference calls. At times, these errors are transient and hard to 69 // reproduce so we need to capture this information the first time. 70 // TODO: Set this flag to FORCE_DEBUG once the new conference call logic gets more mileage 71 // across different IMS implementations. 72 private static final boolean CONF_DBG = true; 73 74 private List<ConferenceParticipant> mConferenceParticipants; 75 /** 76 * Listener for events relating to an IMS call, such as when a call is being 77 * received ("on ringing") or a call is outgoing ("on calling"). 78 * <p>Many of these events are also received by {@link ImsCallSession.Listener}.</p> 79 */ 80 public static class Listener { 81 /** 82 * Called when a request is sent out to initiate a new call 83 * and 1xx response is received from the network. 84 * The default implementation calls {@link #onCallStateChanged}. 85 * 86 * @param call the call object that carries out the IMS call 87 */ 88 public void onCallProgressing(ImsCall call) { 89 onCallStateChanged(call); 90 } 91 92 /** 93 * Called when the call is established. 94 * The default implementation calls {@link #onCallStateChanged}. 95 * 96 * @param call the call object that carries out the IMS call 97 */ 98 public void onCallStarted(ImsCall call) { 99 onCallStateChanged(call); 100 } 101 102 /** 103 * Called when the call setup is failed. 104 * The default implementation calls {@link #onCallError}. 105 * 106 * @param call the call object that carries out the IMS call 107 * @param reasonInfo detailed reason of the call setup failure 108 */ 109 public void onCallStartFailed(ImsCall call, ImsReasonInfo reasonInfo) { 110 onCallError(call, reasonInfo); 111 } 112 113 /** 114 * Called when the call is terminated. 115 * The default implementation calls {@link #onCallStateChanged}. 116 * 117 * @param call the call object that carries out the IMS call 118 * @param reasonInfo detailed reason of the call termination 119 */ 120 public void onCallTerminated(ImsCall call, ImsReasonInfo reasonInfo) { 121 // Store the call termination reason 122 123 onCallStateChanged(call); 124 } 125 126 /** 127 * Called when the call is in hold. 128 * The default implementation calls {@link #onCallStateChanged}. 129 * 130 * @param call the call object that carries out the IMS call 131 */ 132 public void onCallHeld(ImsCall call) { 133 onCallStateChanged(call); 134 } 135 136 /** 137 * Called when the call hold is failed. 138 * The default implementation calls {@link #onCallError}. 139 * 140 * @param call the call object that carries out the IMS call 141 * @param reasonInfo detailed reason of the call hold failure 142 */ 143 public void onCallHoldFailed(ImsCall call, ImsReasonInfo reasonInfo) { 144 onCallError(call, reasonInfo); 145 } 146 147 /** 148 * Called when the call hold is received from the remote user. 149 * The default implementation calls {@link #onCallStateChanged}. 150 * 151 * @param call the call object that carries out the IMS call 152 */ 153 public void onCallHoldReceived(ImsCall call) { 154 onCallStateChanged(call); 155 } 156 157 /** 158 * Called when the call is in call. 159 * The default implementation calls {@link #onCallStateChanged}. 160 * 161 * @param call the call object that carries out the IMS call 162 */ 163 public void onCallResumed(ImsCall call) { 164 onCallStateChanged(call); 165 } 166 167 /** 168 * Called when the call resume is failed. 169 * The default implementation calls {@link #onCallError}. 170 * 171 * @param call the call object that carries out the IMS call 172 * @param reasonInfo detailed reason of the call resume failure 173 */ 174 public void onCallResumeFailed(ImsCall call, ImsReasonInfo reasonInfo) { 175 onCallError(call, reasonInfo); 176 } 177 178 /** 179 * Called when the call resume is received from the remote user. 180 * The default implementation calls {@link #onCallStateChanged}. 181 * 182 * @param call the call object that carries out the IMS call 183 */ 184 public void onCallResumeReceived(ImsCall call) { 185 onCallStateChanged(call); 186 } 187 188 /** 189 * Called when the call is in call. 190 * The default implementation calls {@link #onCallStateChanged}. 191 * 192 * @param call the call object that carries out the active IMS call 193 * @param peerCall the call object that carries out the held IMS call 194 * @param swapCalls {@code true} if the foreground and background calls should be swapped 195 * now that the merge has completed. 196 */ 197 public void onCallMerged(ImsCall call, ImsCall peerCall, boolean swapCalls) { 198 onCallStateChanged(call); 199 } 200 201 /** 202 * Called when the call merge is failed. 203 * The default implementation calls {@link #onCallError}. 204 * 205 * @param call the call object that carries out the IMS call 206 * @param reasonInfo detailed reason of the call merge failure 207 */ 208 public void onCallMergeFailed(ImsCall call, ImsReasonInfo reasonInfo) { 209 onCallError(call, reasonInfo); 210 } 211 212 /** 213 * Called when the call is updated (except for hold/unhold). 214 * The default implementation calls {@link #onCallStateChanged}. 215 * 216 * @param call the call object that carries out the IMS call 217 */ 218 public void onCallUpdated(ImsCall call) { 219 onCallStateChanged(call); 220 } 221 222 /** 223 * Called when the call update is failed. 224 * The default implementation calls {@link #onCallError}. 225 * 226 * @param call the call object that carries out the IMS call 227 * @param reasonInfo detailed reason of the call update failure 228 */ 229 public void onCallUpdateFailed(ImsCall call, ImsReasonInfo reasonInfo) { 230 onCallError(call, reasonInfo); 231 } 232 233 /** 234 * Called when the call update is received from the remote user. 235 * 236 * @param call the call object that carries out the IMS call 237 */ 238 public void onCallUpdateReceived(ImsCall call) { 239 // no-op 240 } 241 242 /** 243 * Called when the call is extended to the conference call. 244 * The default implementation calls {@link #onCallStateChanged}. 245 * 246 * @param call the call object that carries out the IMS call 247 * @param newCall the call object that is extended to the conference from the active call 248 */ 249 public void onCallConferenceExtended(ImsCall call, ImsCall newCall) { 250 onCallStateChanged(call); 251 } 252 253 /** 254 * Called when the conference extension is failed. 255 * The default implementation calls {@link #onCallError}. 256 * 257 * @param call the call object that carries out the IMS call 258 * @param reasonInfo detailed reason of the conference extension failure 259 */ 260 public void onCallConferenceExtendFailed(ImsCall call, 261 ImsReasonInfo reasonInfo) { 262 onCallError(call, reasonInfo); 263 } 264 265 /** 266 * Called when the conference extension is received from the remote user. 267 * 268 * @param call the call object that carries out the IMS call 269 * @param newCall the call object that is extended to the conference from the active call 270 */ 271 public void onCallConferenceExtendReceived(ImsCall call, ImsCall newCall) { 272 onCallStateChanged(call); 273 } 274 275 /** 276 * Called when the invitation request of the participants is delivered to 277 * the conference server. 278 * 279 * @param call the call object that carries out the IMS call 280 */ 281 public void onCallInviteParticipantsRequestDelivered(ImsCall call) { 282 // no-op 283 } 284 285 /** 286 * Called when the invitation request of the participants is failed. 287 * 288 * @param call the call object that carries out the IMS call 289 * @param reasonInfo detailed reason of the conference invitation failure 290 */ 291 public void onCallInviteParticipantsRequestFailed(ImsCall call, 292 ImsReasonInfo reasonInfo) { 293 // no-op 294 } 295 296 /** 297 * Called when the removal request of the participants is delivered to 298 * the conference server. 299 * 300 * @param call the call object that carries out the IMS call 301 */ 302 public void onCallRemoveParticipantsRequestDelivered(ImsCall call) { 303 // no-op 304 } 305 306 /** 307 * Called when the removal request of the participants is failed. 308 * 309 * @param call the call object that carries out the IMS call 310 * @param reasonInfo detailed reason of the conference removal failure 311 */ 312 public void onCallRemoveParticipantsRequestFailed(ImsCall call, 313 ImsReasonInfo reasonInfo) { 314 // no-op 315 } 316 317 /** 318 * Called when the conference state is updated. 319 * 320 * @param call the call object that carries out the IMS call 321 * @param state state of the participant who is participated in the conference call 322 */ 323 public void onCallConferenceStateUpdated(ImsCall call, ImsConferenceState state) { 324 // no-op 325 } 326 327 /** 328 * Called when the state of IMS conference participant(s) has changed. 329 * 330 * @param call the call object that carries out the IMS call. 331 * @param participants the participant(s) and their new state information. 332 */ 333 public void onConferenceParticipantsStateChanged(ImsCall call, 334 List<ConferenceParticipant> participants) { 335 // no-op 336 } 337 338 /** 339 * Called when the USSD message is received from the network. 340 * 341 * @param mode mode of the USSD message (REQUEST / NOTIFY) 342 * @param ussdMessage USSD message 343 */ 344 public void onCallUssdMessageReceived(ImsCall call, 345 int mode, String ussdMessage) { 346 // no-op 347 } 348 349 /** 350 * Called when an error occurs. The default implementation is no op. 351 * overridden. The default implementation is no op. Error events are 352 * not re-directed to this callback and are handled in {@link #onCallError}. 353 * 354 * @param call the call object that carries out the IMS call 355 * @param reasonInfo detailed reason of this error 356 * @see ImsReasonInfo 357 */ 358 public void onCallError(ImsCall call, ImsReasonInfo reasonInfo) { 359 // no-op 360 } 361 362 /** 363 * Called when an event occurs and the corresponding callback is not 364 * overridden. The default implementation is no op. Error events are 365 * not re-directed to this callback and are handled in {@link #onCallError}. 366 * 367 * @param call the call object that carries out the IMS call 368 */ 369 public void onCallStateChanged(ImsCall call) { 370 // no-op 371 } 372 373 /** 374 * Called when the call moves the hold state to the conversation state. 375 * For example, when merging the active & hold call, the state of all the hold call 376 * will be changed from hold state to conversation state. 377 * This callback method can be invoked even though the application does not trigger 378 * any operations. 379 * 380 * @param call the call object that carries out the IMS call 381 * @param state the detailed state of call state changes; 382 * Refer to CALL_STATE_* in {@link ImsCall} 383 */ 384 public void onCallStateChanged(ImsCall call, int state) { 385 // no-op 386 } 387 388 /** 389 * Called when the call supp service is received 390 * The default implementation calls {@link #onCallStateChanged}. 391 * 392 * @param call the call object that carries out the IMS call 393 */ 394 public void onCallSuppServiceReceived(ImsCall call, 395 ImsSuppServiceNotification suppServiceInfo) { 396 } 397 398 /** 399 * Called when TTY mode of remote party changed 400 * 401 * @param call the call object that carries out the IMS call 402 * @param mode TTY mode of remote party 403 */ 404 public void onCallSessionTtyModeReceived(ImsCall call, int mode) { 405 // no-op 406 } 407 408 /** 409 * Called when handover occurs from one access technology to another. 410 * 411 * @param imsCall ImsCall object 412 * @param srcAccessTech original access technology 413 * @param targetAccessTech new access technology 414 * @param reasonInfo 415 */ 416 public void onCallHandover(ImsCall imsCall, int srcAccessTech, int targetAccessTech, 417 ImsReasonInfo reasonInfo) { 418 } 419 420 /** 421 * Called when handover from one access technology to another fails. 422 * 423 * @param imsCall call that failed the handover. 424 * @param srcAccessTech original access technology 425 * @param targetAccessTech new access technology 426 * @param reasonInfo 427 */ 428 public void onCallHandoverFailed(ImsCall imsCall, int srcAccessTech, int targetAccessTech, 429 ImsReasonInfo reasonInfo) { 430 } 431 432 /** 433 * Notifies of a change to the multiparty state for this {@code ImsCall}. 434 * 435 * @param imsCall The IMS call. 436 * @param isMultiParty {@code true} if the call became multiparty, {@code false} 437 * otherwise. 438 */ 439 public void onMultipartyStateChanged(ImsCall imsCall, boolean isMultiParty) { 440 } 441 } 442 443 // List of update operation for IMS call control 444 private static final int UPDATE_NONE = 0; 445 private static final int UPDATE_HOLD = 1; 446 private static final int UPDATE_HOLD_MERGE = 2; 447 private static final int UPDATE_RESUME = 3; 448 private static final int UPDATE_MERGE = 4; 449 private static final int UPDATE_EXTEND_TO_CONFERENCE = 5; 450 private static final int UPDATE_UNSPECIFIED = 6; 451 452 // For synchronization of private variables 453 private Object mLockObj = new Object(); 454 private Context mContext; 455 456 // true if the call is established & in the conversation state 457 private boolean mInCall = false; 458 // true if the call is on hold 459 // If it is triggered by the local, mute the call. Otherwise, play local hold tone 460 // or network generated media. 461 private boolean mHold = false; 462 // true if the call is on mute 463 private boolean mMute = false; 464 // It contains the exclusive call update request. Refer to UPDATE_*. 465 private int mUpdateRequest = UPDATE_NONE; 466 467 private ImsCall.Listener mListener = null; 468 469 // When merging two calls together, the "peer" call that will merge into this call. 470 private ImsCall mMergePeer = null; 471 // When merging two calls together, the "host" call we are merging into. 472 private ImsCall mMergeHost = null; 473 474 // True if Conference request was initiated by 475 // Foreground Conference call else it will be false 476 private boolean mMergeRequestedByConference = false; 477 // Wrapper call session to interworking the IMS service (server). 478 private ImsCallSession mSession = null; 479 // Call profile of the current session. 480 // It can be changed at anytime when the call is updated. 481 private ImsCallProfile mCallProfile = null; 482 // Call profile to be updated after the application's action (accept/reject) 483 // to the call update. After the application's action (accept/reject) is done, 484 // it will be set to null. 485 private ImsCallProfile mProposedCallProfile = null; 486 private ImsReasonInfo mLastReasonInfo = null; 487 488 // Media session to control media (audio/video) operations for an IMS call 489 private ImsStreamMediaSession mMediaSession = null; 490 491 // The temporary ImsCallSession that could represent the merged call once 492 // we receive notification that the merge was successful. 493 private ImsCallSession mTransientConferenceSession = null; 494 // While a merge is progressing, we bury any session termination requests 495 // made on the original ImsCallSession until we have closure on the merge request 496 // If the request ultimately fails, we need to act on the termination request 497 // that we buried temporarily. We do this because we feel that timing issues could 498 // cause the termination request to occur just because the merge is succeeding. 499 private boolean mSessionEndDuringMerge = false; 500 // Just like mSessionEndDuringMerge, we need to keep track of the reason why the 501 // termination request was made on the original session in case we need to act 502 // on it in the case of a merge failure. 503 private ImsReasonInfo mSessionEndDuringMergeReasonInfo = null; 504 // This flag is used to indicate if this ImsCall was merged into a conference 505 // or not. It is used primarily to determine if a disconnect sound should 506 // be heard when the call is terminated. 507 private boolean mIsMerged = false; 508 // If true, this flag means that this ImsCall is in the process of merging 509 // into a conference but it does not yet have closure on if it was 510 // actually added to the conference or not. false implies that it either 511 // is not part of a merging conference or already knows if it was 512 // successfully added. 513 private boolean mCallSessionMergePending = false; 514 515 /** 516 * If {@code true}, this flag indicates that a request to terminate the call was made by 517 * Telephony (could be from the user or some internal telephony logic) 518 * and that when we receive a {@link #processCallTerminated(ImsReasonInfo)} callback from the 519 * radio indicating that the call was terminated, we should override any burying of the 520 * termination due to an ongoing conference merge. 521 */ 522 private boolean mTerminationRequestPending = false; 523 524 /** 525 * For multi-party IMS calls (e.g. conferences), determines if this {@link ImsCall} is the one 526 * hosting the call. This is used to distinguish between a situation where an {@link ImsCall} 527 * is {@link #isMultiparty()} because calls were merged on the device, and a situation where 528 * an {@link ImsCall} is {@link #isMultiparty()} because it is a member of a conference started 529 * on another device. 530 * <p> 531 * When {@code true}, this {@link ImsCall} is is the origin of the conference call. 532 * When {@code false}, this {@link ImsCall} is a member of a conference started on another 533 * device. 534 */ 535 private boolean mIsConferenceHost = false; 536 537 /** 538 * Create an IMS call object. 539 * 540 * @param context the context for accessing system services 541 * @param profile the call profile to make/take a call 542 */ 543 public ImsCall(Context context, ImsCallProfile profile) { 544 mContext = context; 545 mCallProfile = profile; 546 } 547 548 /** 549 * Closes this object. This object is not usable after being closed. 550 */ 551 @Override 552 public void close() { 553 synchronized(mLockObj) { 554 if (mSession != null) { 555 mSession.close(); 556 mSession = null; 557 } else { 558 logi("close :: Cannot close Null call session!"); 559 } 560 561 mCallProfile = null; 562 mProposedCallProfile = null; 563 mLastReasonInfo = null; 564 mMediaSession = null; 565 } 566 } 567 568 /** 569 * Checks if the call has a same remote user identity or not. 570 * 571 * @param userId the remote user identity 572 * @return true if the remote user identity is equal; otherwise, false 573 */ 574 @Override 575 public boolean checkIfRemoteUserIsSame(String userId) { 576 if (userId == null) { 577 return false; 578 } 579 580 return userId.equals(mCallProfile.getCallExtra(ImsCallProfile.EXTRA_REMOTE_URI, "")); 581 } 582 583 /** 584 * Checks if the call is equal or not. 585 * 586 * @param call the call to be compared 587 * @return true if the call is equal; otherwise, false 588 */ 589 @Override 590 public boolean equalsTo(ICall call) { 591 if (call == null) { 592 return false; 593 } 594 595 if (call instanceof ImsCall) { 596 return this.equals(call); 597 } 598 599 return false; 600 } 601 602 public static boolean isSessionAlive(ImsCallSession session) { 603 return session != null && session.isAlive(); 604 } 605 606 /** 607 * Gets the negotiated (local & remote) call profile. 608 * 609 * @return a {@link ImsCallProfile} object that has the negotiated call profile 610 */ 611 public ImsCallProfile getCallProfile() { 612 synchronized(mLockObj) { 613 return mCallProfile; 614 } 615 } 616 617 /** 618 * Gets the local call profile (local capabilities). 619 * 620 * @return a {@link ImsCallProfile} object that has the local call profile 621 */ 622 public ImsCallProfile getLocalCallProfile() throws ImsException { 623 synchronized(mLockObj) { 624 if (mSession == null) { 625 throw new ImsException("No call session", 626 ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED); 627 } 628 629 try { 630 return mSession.getLocalCallProfile(); 631 } catch (Throwable t) { 632 loge("getLocalCallProfile :: ", t); 633 throw new ImsException("getLocalCallProfile()", t, 0); 634 } 635 } 636 } 637 638 /** 639 * Gets the remote call profile (remote capabilities). 640 * 641 * @return a {@link ImsCallProfile} object that has the remote call profile 642 */ 643 public ImsCallProfile getRemoteCallProfile() throws ImsException { 644 synchronized(mLockObj) { 645 if (mSession == null) { 646 throw new ImsException("No call session", 647 ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED); 648 } 649 650 try { 651 return mSession.getRemoteCallProfile(); 652 } catch (Throwable t) { 653 loge("getRemoteCallProfile :: ", t); 654 throw new ImsException("getRemoteCallProfile()", t, 0); 655 } 656 } 657 } 658 659 /** 660 * Gets the call profile proposed by the local/remote user. 661 * 662 * @return a {@link ImsCallProfile} object that has the proposed call profile 663 */ 664 public ImsCallProfile getProposedCallProfile() { 665 synchronized(mLockObj) { 666 if (!isInCall()) { 667 return null; 668 } 669 670 return mProposedCallProfile; 671 } 672 } 673 674 /** 675 * Gets the list of conference participants currently 676 * associated with this call. 677 * 678 * @return The list of conference participants. 679 */ 680 public List<ConferenceParticipant> getConferenceParticipants() { 681 synchronized(mLockObj) { 682 logi("getConferenceParticipants :: mConferenceParticipants" 683 + mConferenceParticipants); 684 return mConferenceParticipants; 685 } 686 } 687 688 /** 689 * Gets the state of the {@link ImsCallSession} that carries this call. 690 * The value returned must be one of the states in {@link ImsCallSession#State}. 691 * 692 * @return the session state 693 */ 694 public int getState() { 695 synchronized(mLockObj) { 696 if (mSession == null) { 697 return ImsCallSession.State.IDLE; 698 } 699 700 return mSession.getState(); 701 } 702 } 703 704 /** 705 * Gets the {@link ImsCallSession} that carries this call. 706 * 707 * @return the session object that carries this call 708 * @hide 709 */ 710 public ImsCallSession getCallSession() { 711 synchronized(mLockObj) { 712 return mSession; 713 } 714 } 715 716 /** 717 * Gets the {@link ImsStreamMediaSession} that handles the media operation of this call. 718 * Almost interface APIs are for the VT (Video Telephony). 719 * 720 * @return the media session object that handles the media operation of this call 721 * @hide 722 */ 723 public ImsStreamMediaSession getMediaSession() { 724 synchronized(mLockObj) { 725 return mMediaSession; 726 } 727 } 728 729 /** 730 * Gets the specified property of this call. 731 * 732 * @param name key to get the extra call information defined in {@link ImsCallProfile} 733 * @return the extra call information as string 734 */ 735 public String getCallExtra(String name) throws ImsException { 736 // Lookup the cache 737 738 synchronized(mLockObj) { 739 // If not found, try to get the property from the remote 740 if (mSession == null) { 741 throw new ImsException("No call session", 742 ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED); 743 } 744 745 try { 746 return mSession.getProperty(name); 747 } catch (Throwable t) { 748 loge("getCallExtra :: ", t); 749 throw new ImsException("getCallExtra()", t, 0); 750 } 751 } 752 } 753 754 /** 755 * Gets the last reason information when the call is not established, cancelled or terminated. 756 * 757 * @return the last reason information 758 */ 759 public ImsReasonInfo getLastReasonInfo() { 760 synchronized(mLockObj) { 761 return mLastReasonInfo; 762 } 763 } 764 765 /** 766 * Checks if the call has a pending update operation. 767 * 768 * @return true if the call has a pending update operation 769 */ 770 public boolean hasPendingUpdate() { 771 synchronized(mLockObj) { 772 return (mUpdateRequest != UPDATE_NONE); 773 } 774 } 775 776 /** 777 * Checks if the call is pending a hold operation. 778 * 779 * @return true if the call is pending a hold operation. 780 */ 781 public boolean isPendingHold() { 782 synchronized(mLockObj) { 783 return (mUpdateRequest == UPDATE_HOLD); 784 } 785 } 786 787 /** 788 * Checks if the call is established. 789 * 790 * @return true if the call is established 791 */ 792 public boolean isInCall() { 793 synchronized(mLockObj) { 794 return mInCall; 795 } 796 } 797 798 /** 799 * Checks if the call is muted. 800 * 801 * @return true if the call is muted 802 */ 803 public boolean isMuted() { 804 synchronized(mLockObj) { 805 return mMute; 806 } 807 } 808 809 /** 810 * Checks if the call is on hold. 811 * 812 * @return true if the call is on hold 813 */ 814 public boolean isOnHold() { 815 synchronized(mLockObj) { 816 return mHold; 817 } 818 } 819 820 /** 821 * Determines if the call is a multiparty call. 822 * 823 * @return {@code True} if the call is a multiparty call. 824 */ 825 public boolean isMultiparty() { 826 synchronized(mLockObj) { 827 if (mSession == null) { 828 return false; 829 } 830 831 return mSession.isMultiparty(); 832 } 833 } 834 835 /** 836 * Where {@link #isMultiparty()} is {@code true}, determines if this {@link ImsCall} is the 837 * origin of the conference call (i.e. {@code #isConferenceHost()} is {@code true}), or if this 838 * {@link ImsCall} is a member of a conference hosted on another device. 839 * 840 * @return {@code true} if this call is the origin of the conference call it is a member of, 841 * {@code false} otherwise. 842 */ 843 public boolean isConferenceHost() { 844 synchronized(mLockObj) { 845 return isMultiparty() && mIsConferenceHost; 846 } 847 } 848 849 /** 850 * Marks whether an IMS call is merged. This should be set {@code true} when the call merges 851 * into a conference. 852 * 853 * @param isMerged Whether the call is merged. 854 */ 855 public void setIsMerged(boolean isMerged) { 856 mIsMerged = isMerged; 857 } 858 859 /** 860 * @return {@code true} if the call recently merged into a conference call. 861 */ 862 public boolean isMerged() { 863 return mIsMerged; 864 } 865 866 /** 867 * Sets the listener to listen to the IMS call events. 868 * The method calls {@link #setListener setListener(listener, false)}. 869 * 870 * @param listener to listen to the IMS call events of this object; null to remove listener 871 * @see #setListener(Listener, boolean) 872 */ 873 public void setListener(ImsCall.Listener listener) { 874 setListener(listener, false); 875 } 876 877 /** 878 * Sets the listener to listen to the IMS call events. 879 * A {@link ImsCall} can only hold one listener at a time. Subsequent calls 880 * to this method override the previous listener. 881 * 882 * @param listener to listen to the IMS call events of this object; null to remove listener 883 * @param callbackImmediately set to true if the caller wants to be called 884 * back immediately on the current state 885 */ 886 public void setListener(ImsCall.Listener listener, boolean callbackImmediately) { 887 boolean inCall; 888 boolean onHold; 889 int state; 890 ImsReasonInfo lastReasonInfo; 891 892 synchronized(mLockObj) { 893 mListener = listener; 894 895 if ((listener == null) || !callbackImmediately) { 896 return; 897 } 898 899 inCall = mInCall; 900 onHold = mHold; 901 state = getState(); 902 lastReasonInfo = mLastReasonInfo; 903 } 904 905 try { 906 if (lastReasonInfo != null) { 907 listener.onCallError(this, lastReasonInfo); 908 } else if (inCall) { 909 if (onHold) { 910 listener.onCallHeld(this); 911 } else { 912 listener.onCallStarted(this); 913 } 914 } else { 915 switch (state) { 916 case ImsCallSession.State.ESTABLISHING: 917 listener.onCallProgressing(this); 918 break; 919 case ImsCallSession.State.TERMINATED: 920 listener.onCallTerminated(this, lastReasonInfo); 921 break; 922 default: 923 // Ignore it. There is no action in the other state. 924 break; 925 } 926 } 927 } catch (Throwable t) { 928 loge("setListener() :: ", t); 929 } 930 } 931 932 /** 933 * Mutes or unmutes the mic for the active call. 934 * 935 * @param muted true if the call is muted, false otherwise 936 */ 937 public void setMute(boolean muted) throws ImsException { 938 synchronized(mLockObj) { 939 if (mMute != muted) { 940 logi("setMute :: turning mute " + (muted ? "on" : "off")); 941 mMute = muted; 942 943 try { 944 mSession.setMute(muted); 945 } catch (Throwable t) { 946 loge("setMute :: ", t); 947 throwImsException(t, 0); 948 } 949 } 950 } 951 } 952 953 /** 954 * Attaches an incoming call to this call object. 955 * 956 * @param session the session that receives the incoming call 957 * @throws ImsException if the IMS service fails to attach this object to the session 958 */ 959 public void attachSession(ImsCallSession session) throws ImsException { 960 logi("attachSession :: session=" + session); 961 962 synchronized(mLockObj) { 963 mSession = session; 964 965 try { 966 mSession.setListener(createCallSessionListener()); 967 } catch (Throwable t) { 968 loge("attachSession :: ", t); 969 throwImsException(t, 0); 970 } 971 } 972 } 973 974 /** 975 * Initiates an IMS call with the call profile which is provided 976 * when creating a {@link ImsCall}. 977 * 978 * @param session the {@link ImsCallSession} for carrying out the call 979 * @param callee callee information to initiate an IMS call 980 * @throws ImsException if the IMS service fails to initiate the call 981 */ 982 public void start(ImsCallSession session, String callee) 983 throws ImsException { 984 logi("start(1) :: session=" + session + ", callee=" + callee); 985 986 synchronized(mLockObj) { 987 mSession = session; 988 989 try { 990 session.setListener(createCallSessionListener()); 991 session.start(callee, mCallProfile); 992 } catch (Throwable t) { 993 loge("start(1) :: ", t); 994 throw new ImsException("start(1)", t, 0); 995 } 996 } 997 } 998 999 /** 1000 * Initiates an IMS conferenca call with the call profile which is provided 1001 * when creating a {@link ImsCall}. 1002 * 1003 * @param session the {@link ImsCallSession} for carrying out the call 1004 * @param participants participant list to initiate an IMS conference call 1005 * @throws ImsException if the IMS service fails to initiate the call 1006 */ 1007 public void start(ImsCallSession session, String[] participants) 1008 throws ImsException { 1009 logi("start(n) :: session=" + session + ", callee=" + participants); 1010 1011 synchronized(mLockObj) { 1012 mSession = session; 1013 1014 try { 1015 session.setListener(createCallSessionListener()); 1016 session.start(participants, mCallProfile); 1017 } catch (Throwable t) { 1018 loge("start(n) :: ", t); 1019 throw new ImsException("start(n)", t, 0); 1020 } 1021 } 1022 } 1023 1024 /** 1025 * Accepts a call. 1026 * 1027 * @see Listener#onCallStarted 1028 * 1029 * @param callType The call type the user agreed to for accepting the call. 1030 * @throws ImsException if the IMS service fails to accept the call 1031 */ 1032 public void accept(int callType) throws ImsException { 1033 accept(callType, new ImsStreamMediaProfile()); 1034 } 1035 1036 /** 1037 * Accepts a call. 1038 * 1039 * @param callType call type to be answered in {@link ImsCallProfile} 1040 * @param profile a media profile to be answered (audio/audio & video, direction, ...) 1041 * @see Listener#onCallStarted 1042 * @throws ImsException if the IMS service fails to accept the call 1043 */ 1044 public void accept(int callType, ImsStreamMediaProfile profile) throws ImsException { 1045 logi("accept :: callType=" + callType + ", profile=" + profile); 1046 1047 synchronized(mLockObj) { 1048 if (mSession == null) { 1049 throw new ImsException("No call to answer", 1050 ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED); 1051 } 1052 1053 try { 1054 mSession.accept(callType, profile); 1055 } catch (Throwable t) { 1056 loge("accept :: ", t); 1057 throw new ImsException("accept()", t, 0); 1058 } 1059 1060 if (mInCall && (mProposedCallProfile != null)) { 1061 if (DBG) { 1062 logi("accept :: call profile will be updated"); 1063 } 1064 1065 mCallProfile = mProposedCallProfile; 1066 mProposedCallProfile = null; 1067 } 1068 1069 // Other call update received 1070 if (mInCall && (mUpdateRequest == UPDATE_UNSPECIFIED)) { 1071 mUpdateRequest = UPDATE_NONE; 1072 } 1073 } 1074 } 1075 1076 /** 1077 * Rejects a call. 1078 * 1079 * @param reason reason code to reject an incoming call 1080 * @see Listener#onCallStartFailed 1081 * @throws ImsException if the IMS service fails to reject the call 1082 */ 1083 public void reject(int reason) throws ImsException { 1084 logi("reject :: reason=" + reason); 1085 1086 synchronized(mLockObj) { 1087 if (mSession != null) { 1088 mSession.reject(reason); 1089 } 1090 1091 if (mInCall && (mProposedCallProfile != null)) { 1092 if (DBG) { 1093 logi("reject :: call profile is not updated; destroy it..."); 1094 } 1095 1096 mProposedCallProfile = null; 1097 } 1098 1099 // Other call update received 1100 if (mInCall && (mUpdateRequest == UPDATE_UNSPECIFIED)) { 1101 mUpdateRequest = UPDATE_NONE; 1102 } 1103 } 1104 } 1105 1106 /** 1107 * Terminates an IMS call (e.g. user initiated). 1108 * 1109 * @param reason reason code to terminate a call 1110 * @throws ImsException if the IMS service fails to terminate the call 1111 */ 1112 public void terminate(int reason) throws ImsException { 1113 logi("terminate :: reason=" + reason); 1114 1115 synchronized(mLockObj) { 1116 mHold = false; 1117 mInCall = false; 1118 mTerminationRequestPending = true; 1119 1120 if (mSession != null) { 1121 // TODO: Fix the fact that user invoked call terminations during 1122 // the process of establishing a conference call needs to be handled 1123 // as a special case. 1124 // Currently, any terminations (both invoked by the user or 1125 // by the network results in a callSessionTerminated() callback 1126 // from the network. When establishing a conference call we bury 1127 // these callbacks until we get closure on all participants of the 1128 // conference. In some situations, we will throw away the callback 1129 // (when the underlying session of the host of the new conference 1130 // is terminated) or will will unbury it when the conference has been 1131 // established, like when the peer of the new conference goes away 1132 // after the conference has been created. The UI relies on the callback 1133 // to reflect the fact that the call is gone. 1134 // So if a user decides to terminated a call while it is merging, it 1135 // could take a long time to reflect in the UI due to the conference 1136 // processing but we should probably cancel that and just terminate 1137 // the call immediately and clean up. This is not a huge issue right 1138 // now because we have not seen instances where establishing a 1139 // conference takes a long time (more than a second or two). 1140 mSession.terminate(reason); 1141 } 1142 } 1143 } 1144 1145 1146 /** 1147 * Puts a call on hold. When succeeds, {@link Listener#onCallHeld} is called. 1148 * 1149 * @see Listener#onCallHeld, Listener#onCallHoldFailed 1150 * @throws ImsException if the IMS service fails to hold the call 1151 */ 1152 public void hold() throws ImsException { 1153 logi("hold :: "); 1154 1155 if (isOnHold()) { 1156 if (DBG) { 1157 logi("hold :: call is already on hold"); 1158 } 1159 return; 1160 } 1161 1162 synchronized(mLockObj) { 1163 if (mUpdateRequest != UPDATE_NONE) { 1164 loge("hold :: update is in progress; request=" + 1165 updateRequestToString(mUpdateRequest)); 1166 throw new ImsException("Call update is in progress", 1167 ImsReasonInfo.CODE_LOCAL_ILLEGAL_STATE); 1168 } 1169 1170 if (mSession == null) { 1171 throw new ImsException("No call session", 1172 ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED); 1173 } 1174 1175 mSession.hold(createHoldMediaProfile()); 1176 // FIXME: We should update the state on the callback because that is where 1177 // we can confirm that the hold request was successful or not. 1178 mHold = true; 1179 mUpdateRequest = UPDATE_HOLD; 1180 } 1181 } 1182 1183 /** 1184 * Continues a call that's on hold. When succeeds, {@link Listener#onCallResumed} is called. 1185 * 1186 * @see Listener#onCallResumed, Listener#onCallResumeFailed 1187 * @throws ImsException if the IMS service fails to resume the call 1188 */ 1189 public void resume() throws ImsException { 1190 logi("resume :: "); 1191 1192 if (!isOnHold()) { 1193 if (DBG) { 1194 logi("resume :: call is not being held"); 1195 } 1196 return; 1197 } 1198 1199 synchronized(mLockObj) { 1200 if (mUpdateRequest != UPDATE_NONE) { 1201 loge("resume :: update is in progress; request=" + 1202 updateRequestToString(mUpdateRequest)); 1203 throw new ImsException("Call update is in progress", 1204 ImsReasonInfo.CODE_LOCAL_ILLEGAL_STATE); 1205 } 1206 1207 if (mSession == null) { 1208 loge("resume :: "); 1209 throw new ImsException("No call session", 1210 ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED); 1211 } 1212 1213 // mHold is set to false in confirmation callback that the 1214 // ImsCall was resumed. 1215 mUpdateRequest = UPDATE_RESUME; 1216 mSession.resume(createResumeMediaProfile()); 1217 } 1218 } 1219 1220 /** 1221 * Merges the active & hold call. 1222 * 1223 * @see Listener#onCallMerged, Listener#onCallMergeFailed 1224 * @throws ImsException if the IMS service fails to merge the call 1225 */ 1226 private void merge() throws ImsException { 1227 logi("merge :: "); 1228 1229 synchronized(mLockObj) { 1230 if (mUpdateRequest != UPDATE_NONE) { 1231 loge("merge :: update is in progress; request=" + 1232 updateRequestToString(mUpdateRequest)); 1233 throw new ImsException("Call update is in progress", 1234 ImsReasonInfo.CODE_LOCAL_ILLEGAL_STATE); 1235 } 1236 1237 if (mSession == null) { 1238 loge("merge :: no call session"); 1239 throw new ImsException("No call session", 1240 ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED); 1241 } 1242 1243 // if skipHoldBeforeMerge = true, IMS service implementation will 1244 // merge without explicitly holding the call. 1245 if (mHold || (mContext.getResources().getBoolean( 1246 com.android.internal.R.bool.skipHoldBeforeMerge))) { 1247 1248 if (mMergePeer != null && !mMergePeer.isMultiparty() && !isMultiparty()) { 1249 // We only set UPDATE_MERGE when we are adding the first 1250 // calls to the Conference. If there is already a conference 1251 // no special handling is needed. The existing conference 1252 // session will just go active and any other sessions will be terminated 1253 // if needed. There will be no merge failed callback. 1254 // Mark both the host and peer UPDATE_MERGE to ensure both are aware that a 1255 // merge is pending. 1256 mUpdateRequest = UPDATE_MERGE; 1257 mMergePeer.mUpdateRequest = UPDATE_MERGE; 1258 } 1259 1260 mSession.merge(); 1261 } else { 1262 // This code basically says, we need to explicitly hold before requesting a merge 1263 // when we get the callback that the hold was successful (or failed), we should 1264 // automatically request a merge. 1265 mSession.hold(createHoldMediaProfile()); 1266 mHold = true; 1267 mUpdateRequest = UPDATE_HOLD_MERGE; 1268 } 1269 } 1270 } 1271 1272 /** 1273 * Merges the active & hold call. 1274 * 1275 * @param bgCall the background (holding) call 1276 * @see Listener#onCallMerged, Listener#onCallMergeFailed 1277 * @throws ImsException if the IMS service fails to merge the call 1278 */ 1279 public void merge(ImsCall bgCall) throws ImsException { 1280 logi("merge(1) :: bgImsCall=" + bgCall); 1281 1282 if (bgCall == null) { 1283 throw new ImsException("No background call", 1284 ImsReasonInfo.CODE_LOCAL_ILLEGAL_ARGUMENT); 1285 } 1286 1287 synchronized(mLockObj) { 1288 // Mark both sessions as pending merge. 1289 this.setCallSessionMergePending(true); 1290 bgCall.setCallSessionMergePending(true); 1291 1292 if ((!isMultiparty() && !bgCall.isMultiparty()) || isMultiparty()) { 1293 // If neither call is multiparty, the current call is the merge host and the bg call 1294 // is the merge peer (ie we're starting a new conference). 1295 // OR 1296 // If this call is multiparty, it is the merge host and the other call is the merge 1297 // peer. 1298 setMergePeer(bgCall); 1299 } else { 1300 // If the bg call is multiparty, it is the merge host. 1301 setMergeHost(bgCall); 1302 } 1303 } 1304 1305 if (isMultiparty()) { 1306 mMergeRequestedByConference = true; 1307 } else { 1308 logi("merge : mMergeRequestedByConference not set"); 1309 } 1310 merge(); 1311 } 1312 1313 /** 1314 * Updates the current call's properties (ex. call mode change: video upgrade / downgrade). 1315 */ 1316 public void update(int callType, ImsStreamMediaProfile mediaProfile) throws ImsException { 1317 logi("update :: callType=" + callType + ", mediaProfile=" + mediaProfile); 1318 1319 if (isOnHold()) { 1320 if (DBG) { 1321 logi("update :: call is on hold"); 1322 } 1323 throw new ImsException("Not in a call to update call", 1324 ImsReasonInfo.CODE_LOCAL_ILLEGAL_STATE); 1325 } 1326 1327 synchronized(mLockObj) { 1328 if (mUpdateRequest != UPDATE_NONE) { 1329 if (DBG) { 1330 logi("update :: update is in progress; request=" + 1331 updateRequestToString(mUpdateRequest)); 1332 } 1333 throw new ImsException("Call update is in progress", 1334 ImsReasonInfo.CODE_LOCAL_ILLEGAL_STATE); 1335 } 1336 1337 if (mSession == null) { 1338 loge("update :: "); 1339 throw new ImsException("No call session", 1340 ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED); 1341 } 1342 1343 mSession.update(callType, mediaProfile); 1344 mUpdateRequest = UPDATE_UNSPECIFIED; 1345 } 1346 } 1347 1348 /** 1349 * Extends this call (1-to-1 call) to the conference call 1350 * inviting the specified participants to. 1351 * 1352 */ 1353 public void extendToConference(String[] participants) throws ImsException { 1354 logi("extendToConference ::"); 1355 1356 if (isOnHold()) { 1357 if (DBG) { 1358 logi("extendToConference :: call is on hold"); 1359 } 1360 throw new ImsException("Not in a call to extend a call to conference", 1361 ImsReasonInfo.CODE_LOCAL_ILLEGAL_STATE); 1362 } 1363 1364 synchronized(mLockObj) { 1365 if (mUpdateRequest != UPDATE_NONE) { 1366 if (CONF_DBG) { 1367 logi("extendToConference :: update is in progress; request=" + 1368 updateRequestToString(mUpdateRequest)); 1369 } 1370 throw new ImsException("Call update is in progress", 1371 ImsReasonInfo.CODE_LOCAL_ILLEGAL_STATE); 1372 } 1373 1374 if (mSession == null) { 1375 loge("extendToConference :: "); 1376 throw new ImsException("No call session", 1377 ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED); 1378 } 1379 1380 mSession.extendToConference(participants); 1381 mUpdateRequest = UPDATE_EXTEND_TO_CONFERENCE; 1382 } 1383 } 1384 1385 /** 1386 * Requests the conference server to invite an additional participants to the conference. 1387 * 1388 */ 1389 public void inviteParticipants(String[] participants) throws ImsException { 1390 logi("inviteParticipants ::"); 1391 1392 synchronized(mLockObj) { 1393 if (mSession == null) { 1394 loge("inviteParticipants :: "); 1395 throw new ImsException("No call session", 1396 ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED); 1397 } 1398 1399 mSession.inviteParticipants(participants); 1400 } 1401 } 1402 1403 /** 1404 * Requests the conference server to remove the specified participants from the conference. 1405 * 1406 */ 1407 public void removeParticipants(String[] participants) throws ImsException { 1408 logi("removeParticipants :: session=" + mSession); 1409 synchronized(mLockObj) { 1410 if (mSession == null) { 1411 loge("removeParticipants :: "); 1412 throw new ImsException("No call session", 1413 ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED); 1414 } 1415 1416 mSession.removeParticipants(participants); 1417 1418 } 1419 } 1420 1421 /** 1422 * Sends a DTMF code. According to <a href="http://tools.ietf.org/html/rfc2833">RFC 2833</a>, 1423 * event 0 ~ 9 maps to decimal value 0 ~ 9, '*' to 10, '#' to 11, event 'A' ~ 'D' to 12 ~ 15, 1424 * and event flash to 16. Currently, event flash is not supported. 1425 * 1426 * @param c that represents the DTMF to send. '0' ~ '9', 'A' ~ 'D', '*', '#' are valid inputs. 1427 * @param result the result message to send when done. 1428 */ 1429 public void sendDtmf(char c, Message result) { 1430 logi("sendDtmf :: code=" + c); 1431 1432 synchronized(mLockObj) { 1433 if (mSession != null) { 1434 mSession.sendDtmf(c, result); 1435 } 1436 } 1437 } 1438 1439 /** 1440 * Start a DTMF code. According to <a href="http://tools.ietf.org/html/rfc2833">RFC 2833</a>, 1441 * event 0 ~ 9 maps to decimal value 0 ~ 9, '*' to 10, '#' to 11, event 'A' ~ 'D' to 12 ~ 15, 1442 * and event flash to 16. Currently, event flash is not supported. 1443 * 1444 * @param c that represents the DTMF to send. '0' ~ '9', 'A' ~ 'D', '*', '#' are valid inputs. 1445 */ 1446 public void startDtmf(char c) { 1447 logi("startDtmf :: code=" + c); 1448 1449 synchronized(mLockObj) { 1450 if (mSession != null) { 1451 mSession.startDtmf(c); 1452 } 1453 } 1454 } 1455 1456 /** 1457 * Stop a DTMF code. 1458 */ 1459 public void stopDtmf() { 1460 logi("stopDtmf :: "); 1461 1462 synchronized(mLockObj) { 1463 if (mSession != null) { 1464 mSession.stopDtmf(); 1465 } 1466 } 1467 } 1468 1469 /** 1470 * Sends an USSD message. 1471 * 1472 * @param ussdMessage USSD message to send 1473 */ 1474 public void sendUssd(String ussdMessage) throws ImsException { 1475 logi("sendUssd :: ussdMessage=" + ussdMessage); 1476 1477 synchronized(mLockObj) { 1478 if (mSession == null) { 1479 loge("sendUssd :: "); 1480 throw new ImsException("No call session", 1481 ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED); 1482 } 1483 1484 mSession.sendUssd(ussdMessage); 1485 } 1486 } 1487 1488 private void clear(ImsReasonInfo lastReasonInfo) { 1489 mInCall = false; 1490 mHold = false; 1491 mUpdateRequest = UPDATE_NONE; 1492 mLastReasonInfo = lastReasonInfo; 1493 } 1494 1495 /** 1496 * Creates an IMS call session listener. 1497 */ 1498 private ImsCallSession.Listener createCallSessionListener() { 1499 return new ImsCallSessionListenerProxy(); 1500 } 1501 1502 private ImsCall createNewCall(ImsCallSession session, ImsCallProfile profile) { 1503 ImsCall call = new ImsCall(mContext, profile); 1504 1505 try { 1506 call.attachSession(session); 1507 } catch (ImsException e) { 1508 if (call != null) { 1509 call.close(); 1510 call = null; 1511 } 1512 } 1513 1514 // Do additional operations... 1515 1516 return call; 1517 } 1518 1519 private ImsStreamMediaProfile createHoldMediaProfile() { 1520 ImsStreamMediaProfile mediaProfile = new ImsStreamMediaProfile(); 1521 1522 if (mCallProfile == null) { 1523 return mediaProfile; 1524 } 1525 1526 mediaProfile.mAudioQuality = mCallProfile.mMediaProfile.mAudioQuality; 1527 mediaProfile.mVideoQuality = mCallProfile.mMediaProfile.mVideoQuality; 1528 mediaProfile.mAudioDirection = ImsStreamMediaProfile.DIRECTION_SEND; 1529 1530 if (mediaProfile.mVideoQuality != ImsStreamMediaProfile.VIDEO_QUALITY_NONE) { 1531 mediaProfile.mVideoDirection = ImsStreamMediaProfile.DIRECTION_SEND; 1532 } 1533 1534 return mediaProfile; 1535 } 1536 1537 private ImsStreamMediaProfile createResumeMediaProfile() { 1538 ImsStreamMediaProfile mediaProfile = new ImsStreamMediaProfile(); 1539 1540 if (mCallProfile == null) { 1541 return mediaProfile; 1542 } 1543 1544 mediaProfile.mAudioQuality = mCallProfile.mMediaProfile.mAudioQuality; 1545 mediaProfile.mVideoQuality = mCallProfile.mMediaProfile.mVideoQuality; 1546 mediaProfile.mAudioDirection = ImsStreamMediaProfile.DIRECTION_SEND_RECEIVE; 1547 1548 if (mediaProfile.mVideoQuality != ImsStreamMediaProfile.VIDEO_QUALITY_NONE) { 1549 mediaProfile.mVideoDirection = ImsStreamMediaProfile.DIRECTION_SEND_RECEIVE; 1550 } 1551 1552 return mediaProfile; 1553 } 1554 1555 private void enforceConversationMode() { 1556 if (mInCall) { 1557 mHold = false; 1558 mUpdateRequest = UPDATE_NONE; 1559 } 1560 } 1561 1562 private void mergeInternal() { 1563 if (CONF_DBG) { 1564 logi("mergeInternal :: "); 1565 } 1566 1567 mSession.merge(); 1568 mUpdateRequest = UPDATE_MERGE; 1569 } 1570 1571 private void notifyConferenceSessionTerminated(ImsReasonInfo reasonInfo) { 1572 ImsCall.Listener listener = mListener; 1573 clear(reasonInfo); 1574 1575 if (listener != null) { 1576 try { 1577 listener.onCallTerminated(this, reasonInfo); 1578 } catch (Throwable t) { 1579 loge("notifyConferenceSessionTerminated :: ", t); 1580 } 1581 } 1582 } 1583 1584 private void notifyConferenceStateUpdated(ImsConferenceState state) { 1585 if (state == null || state.mParticipants == null) { 1586 return; 1587 } 1588 1589 Set<Entry<String, Bundle>> participants = state.mParticipants.entrySet(); 1590 1591 if (participants == null) { 1592 return; 1593 } 1594 1595 Iterator<Entry<String, Bundle>> iterator = participants.iterator(); 1596 mConferenceParticipants = new ArrayList<>(participants.size()); 1597 while (iterator.hasNext()) { 1598 Entry<String, Bundle> entry = iterator.next(); 1599 1600 String key = entry.getKey(); 1601 Bundle confInfo = entry.getValue(); 1602 String status = confInfo.getString(ImsConferenceState.STATUS); 1603 String user = confInfo.getString(ImsConferenceState.USER); 1604 String displayName = confInfo.getString(ImsConferenceState.DISPLAY_TEXT); 1605 String endpoint = confInfo.getString(ImsConferenceState.ENDPOINT); 1606 1607 if (CONF_DBG) { 1608 logi("notifyConferenceStateUpdated :: key=" + key + 1609 ", status=" + status + 1610 ", user=" + user + 1611 ", displayName= " + displayName + 1612 ", endpoint=" + endpoint); 1613 } 1614 1615 Uri handle = Uri.parse(user); 1616 if (endpoint == null) { 1617 endpoint = ""; 1618 } 1619 Uri endpointUri = Uri.parse(endpoint); 1620 int connectionState = ImsConferenceState.getConnectionStateForStatus(status); 1621 1622 if (connectionState != Connection.STATE_DISCONNECTED) { 1623 ConferenceParticipant conferenceParticipant = new ConferenceParticipant(handle, 1624 displayName, endpointUri, connectionState); 1625 mConferenceParticipants.add(conferenceParticipant); 1626 } 1627 } 1628 1629 if (mConferenceParticipants != null && !mConferenceParticipants.isEmpty() 1630 && mListener != null) { 1631 try { 1632 mListener.onConferenceParticipantsStateChanged(this, mConferenceParticipants); 1633 } catch (Throwable t) { 1634 loge("notifyConferenceStateUpdated :: ", t); 1635 } 1636 } 1637 } 1638 1639 /** 1640 * Perform all cleanup and notification around the termination of a session. 1641 * Note that there are 2 distinct modes of operation. The first is when 1642 * we receive a session termination on the primary session when we are 1643 * in the processing of merging. The second is when we are not merging anything 1644 * and the call is terminated. 1645 * 1646 * @param reasonInfo The reason for the session termination 1647 */ 1648 private void processCallTerminated(ImsReasonInfo reasonInfo) { 1649 logi("processCallTerminated :: reason=" + reasonInfo + " userInitiated = " + 1650 mTerminationRequestPending); 1651 1652 ImsCall.Listener listener = null; 1653 synchronized(ImsCall.this) { 1654 // If we are in the midst of establishing a conference, we will bury the termination 1655 // until the merge has completed. If necessary we can surface the termination at 1656 // this point. 1657 // We will also NOT bury the termination if a termination was initiated locally. 1658 if (isCallSessionMergePending() && !mTerminationRequestPending) { 1659 // Since we are in the process of a merge, this trigger means something 1660 // else because it is probably due to the merge happening vs. the 1661 // session is really terminated. Let's flag this and revisit if 1662 // the merge() ends up failing because we will need to take action on the 1663 // mSession in that case since the termination was not due to the merge 1664 // succeeding. 1665 if (CONF_DBG) { 1666 logi("processCallTerminated :: burying termination during ongoing merge."); 1667 } 1668 mSessionEndDuringMerge = true; 1669 mSessionEndDuringMergeReasonInfo = reasonInfo; 1670 return; 1671 } else if (mTerminationRequestPending) { 1672 // Abort the merge if we receive a termination request from telephony or the user. 1673 clearMergeInfo(); 1674 } 1675 1676 // If we are terminating the conference call, notify using conference listeners. 1677 if (isMultiparty()) { 1678 notifyConferenceSessionTerminated(reasonInfo); 1679 return; 1680 } else { 1681 listener = mListener; 1682 clear(reasonInfo); 1683 } 1684 } 1685 1686 if (listener != null) { 1687 try { 1688 listener.onCallTerminated(ImsCall.this, reasonInfo); 1689 } catch (Throwable t) { 1690 loge("processCallTerminated :: ", t); 1691 } 1692 } 1693 } 1694 1695 /** 1696 * This function determines if the ImsCallSession is our actual ImsCallSession or if is 1697 * the transient session used in the process of creating a conference. This function should only 1698 * be called within callbacks that are not directly related to conference merging but might 1699 * potentially still be called on the transient ImsCallSession sent to us from 1700 * callSessionMergeStarted() when we don't really care. In those situations, we probably don't 1701 * want to take any action so we need to know that we can return early. 1702 * 1703 * @param session - The {@link ImsCallSession} that the function needs to analyze 1704 * @return true if this is the transient {@link ImsCallSession}, false otherwise. 1705 */ 1706 private boolean isTransientConferenceSession(ImsCallSession session) { 1707 if (session != null && session != mSession && session == mTransientConferenceSession) { 1708 return true; 1709 } 1710 return false; 1711 } 1712 1713 private void setTransientSessionAsPrimary(ImsCallSession transientSession) { 1714 synchronized (ImsCall.this) { 1715 mSession.setListener(null); 1716 mSession = transientSession; 1717 mSession.setListener(createCallSessionListener()); 1718 } 1719 } 1720 1721 private void markCallAsMerged(boolean playDisconnectTone) { 1722 if (!isSessionAlive(mSession)) { 1723 // If the peer is dead, let's not play a disconnect sound for it when we 1724 // unbury the termination callback. 1725 logi("markCallAsMerged"); 1726 setIsMerged(playDisconnectTone); 1727 mSessionEndDuringMerge = true; 1728 String reasonInfo; 1729 if (playDisconnectTone) { 1730 reasonInfo = "Call ended by network"; 1731 } else { 1732 reasonInfo = "Call ended during conference merge process."; 1733 } 1734 mSessionEndDuringMergeReasonInfo = new ImsReasonInfo( 1735 ImsReasonInfo.CODE_UNSPECIFIED, 0, reasonInfo); 1736 } 1737 } 1738 1739 /** 1740 * Checks if the merge was requested by foreground conference call 1741 * 1742 * @return true if the merge was requested by foreground conference call 1743 */ 1744 public boolean isMergeRequestedByConf() { 1745 synchronized(mLockObj) { 1746 return mMergeRequestedByConference; 1747 } 1748 } 1749 1750 /** 1751 * Resets the flag which indicates merge request was sent by 1752 * foreground conference call 1753 */ 1754 public void resetIsMergeRequestedByConf(boolean value) { 1755 synchronized(mLockObj) { 1756 mMergeRequestedByConference = value; 1757 } 1758 } 1759 1760 /** 1761 * Returns current ImsCallSession 1762 * 1763 * @return current session 1764 */ 1765 public ImsCallSession getSession() { 1766 synchronized(mLockObj) { 1767 return mSession; 1768 } 1769 } 1770 1771 /** 1772 * We have detected that a initial conference call has been fully configured. The internal 1773 * state of both {@code ImsCall} objects need to be cleaned up to reflect the new state. 1774 * This function should only be called in the context of the merge host to simplify logic 1775 * 1776 */ 1777 private void processMergeComplete() { 1778 logi("processMergeComplete :: "); 1779 1780 // The logic simplifies if we can assume that this function is only called on 1781 // the merge host. 1782 if (!isMergeHost()) { 1783 loge("processMergeComplete :: We are not the merge host!"); 1784 return; 1785 } 1786 1787 ImsCall.Listener listener; 1788 boolean swapRequired = false; 1789 1790 ImsCall finalHostCall; 1791 ImsCall finalPeerCall; 1792 1793 synchronized(ImsCall.this) { 1794 if (isMultiparty()) { 1795 setIsMerged(false); 1796 // if case handles Case 4 explained in callSessionMergeComplete 1797 // otherwise it is case 5 1798 if (!mMergeRequestedByConference) { 1799 // single call in fg, conference call in bg. 1800 // Finally conf call becomes active after conference 1801 this.mHold = false; 1802 swapRequired = true; 1803 } 1804 mMergePeer.markCallAsMerged(false); 1805 finalHostCall = this; 1806 finalPeerCall = mMergePeer; 1807 } else { 1808 // If we are here, we are not trying to merge a new call into an existing 1809 // conference. That means that there is a transient session on the merge 1810 // host that represents the future conference once all the parties 1811 // have been added to it. So make sure that it exists or else something 1812 // very wrong is going on. 1813 if (mTransientConferenceSession == null) { 1814 loge("processMergeComplete :: No transient session!"); 1815 return; 1816 } 1817 if (mMergePeer == null) { 1818 loge("processMergeComplete :: No merge peer!"); 1819 return; 1820 } 1821 1822 // Since we are the host, we have the transient session attached to us. Let's detach 1823 // it and figure out where we need to set it for the final conference configuration. 1824 ImsCallSession transientConferenceSession = mTransientConferenceSession; 1825 mTransientConferenceSession = null; 1826 1827 // Clear the listener for this transient session, we'll create a new listener 1828 // when it is attached to the final ImsCall that it should live on. 1829 transientConferenceSession.setListener(null); 1830 1831 // Determine which call the transient session should be moved to. If the current 1832 // call session is still alive and the merge peer's session is not, we have a 1833 // situation where the current call failed to merge into the conference but the 1834 // merge peer did merge in to the conference. In this type of scenario the current 1835 // call will continue as a single party call, yet the background call will become 1836 // the conference. 1837 1838 // handles Case 3 explained in callSessionMergeComplete 1839 if (isSessionAlive(mSession) && !isSessionAlive(mMergePeer.getCallSession())) { 1840 // I'm the host but we are moving the transient session to the peer since its 1841 // session was disconnected and my session is still alive. This signifies that 1842 // their session was properly added to the conference but mine was not because 1843 // it is probably in the held state as opposed to part of the final conference. 1844 // In this case, we need to set isMerged to false on both calls so the 1845 // disconnect sound is called when either call disconnects. 1846 // Note that this case is only valid if this is an initial conference being 1847 // brought up. 1848 mMergePeer.mHold = false; 1849 this.mHold = true; 1850 finalHostCall = mMergePeer; 1851 finalPeerCall = this; 1852 swapRequired = true; 1853 setIsMerged(false); 1854 mMergePeer.setIsMerged(false); 1855 if (CONF_DBG) { 1856 logi("processMergeComplete :: transient will transfer to merge peer"); 1857 } 1858 } else if (!isSessionAlive(mSession) && 1859 isSessionAlive(mMergePeer.getCallSession())) { 1860 // Handles case 2 explained in callSessionMergeComplete 1861 // The transient session stays with us and the disconnect sound should be played 1862 // when the merge peer eventually disconnects since it was not actually added to 1863 // the conference and is probably sitting in the held state. 1864 finalHostCall = this; 1865 finalPeerCall = mMergePeer; 1866 swapRequired = false; 1867 setIsMerged(false); 1868 mMergePeer.setIsMerged(false); // Play the disconnect sound 1869 if (CONF_DBG) { 1870 logi("processMergeComplete :: transient will stay with the merge host"); 1871 } 1872 } else { 1873 // Handles case 1 explained in callSessionMergeComplete 1874 // The transient session stays with us and the disconnect sound should not be 1875 // played when we ripple up the disconnect for the merge peer because it was 1876 // only disconnected to be added to the conference. 1877 finalHostCall = this; 1878 finalPeerCall = mMergePeer; 1879 mMergePeer.markCallAsMerged(false); 1880 swapRequired = false; 1881 setIsMerged(false); 1882 mMergePeer.setIsMerged(true); 1883 if (CONF_DBG) { 1884 logi("processMergeComplete :: transient will stay with us (I'm the host)."); 1885 } 1886 } 1887 1888 if (CONF_DBG) { 1889 logi("processMergeComplete :: call=" + finalHostCall + " is the final host"); 1890 } 1891 1892 // Add the transient session to the ImsCall that ended up being the host for the 1893 // conference. 1894 finalHostCall.setTransientSessionAsPrimary(transientConferenceSession); 1895 } 1896 1897 listener = finalHostCall.mListener; 1898 1899 // Clear all the merge related flags. 1900 clearMergeInfo(); 1901 1902 // For the final peer...let's bubble up any possible disconnects that we had 1903 // during the merge process 1904 finalPeerCall.notifySessionTerminatedDuringMerge(); 1905 // For the final host, let's just bury the disconnects that we my have received 1906 // during the merge process since we are now the host of the conference call. 1907 finalHostCall.clearSessionTerminationFlags(); 1908 1909 // Keep track of the fact that merge host is the origin of a conference call in 1910 // progress. This is important so that we can later determine if a multiparty ImsCall 1911 // is multiparty because it was the origin of a conference call, or because it is a 1912 // member of a conference on another device. 1913 finalHostCall.mIsConferenceHost = true; 1914 } 1915 if (listener != null) { 1916 try { 1917 // finalPeerCall will have the participant that was not merged and 1918 // it will be held state 1919 // if peer was merged successfully, finalPeerCall will be null 1920 listener.onCallMerged(finalHostCall, finalPeerCall, swapRequired); 1921 } catch (Throwable t) { 1922 loge("processMergeComplete :: ", t); 1923 } 1924 if (mConferenceParticipants != null && !mConferenceParticipants.isEmpty()) { 1925 try { 1926 listener.onConferenceParticipantsStateChanged(this, mConferenceParticipants); 1927 } catch (Throwable t) { 1928 loge("processMergeComplete :: ", t); 1929 } 1930 } 1931 } 1932 return; 1933 } 1934 1935 /** 1936 * Handles the case where the session has ended during a merge by reporting the termination 1937 * reason to listeners. 1938 */ 1939 private void notifySessionTerminatedDuringMerge() { 1940 ImsCall.Listener listener; 1941 boolean notifyFailure = false; 1942 ImsReasonInfo notifyFailureReasonInfo = null; 1943 1944 synchronized(ImsCall.this) { 1945 listener = mListener; 1946 if (mSessionEndDuringMerge) { 1947 // Set some local variables that will send out a notification about a 1948 // previously buried termination callback for our primary session now that 1949 // we know that this is not due to the conference call merging successfully. 1950 if (CONF_DBG) { 1951 logi("notifySessionTerminatedDuringMerge ::reporting terminate during merge"); 1952 } 1953 notifyFailure = true; 1954 notifyFailureReasonInfo = mSessionEndDuringMergeReasonInfo; 1955 } 1956 clearSessionTerminationFlags(); 1957 } 1958 1959 if (listener != null && notifyFailure) { 1960 try { 1961 processCallTerminated(notifyFailureReasonInfo); 1962 } catch (Throwable t) { 1963 loge("notifySessionTerminatedDuringMerge :: ", t); 1964 } 1965 } 1966 } 1967 1968 private void clearSessionTerminationFlags() { 1969 mSessionEndDuringMerge = false; 1970 mSessionEndDuringMergeReasonInfo = null; 1971 } 1972 1973 /** 1974 * We received a callback from ImsCallSession that a merge failed. Clean up all 1975 * internal state to represent this state change. The calling function is a callback 1976 * and should have been called on the session that was in the foreground 1977 * when merge() was originally called. It is assumed that this function will be called 1978 * on the merge host. 1979 * 1980 * @param reasonInfo The {@link ImsReasonInfo} why the merge failed. 1981 */ 1982 private void processMergeFailed(ImsReasonInfo reasonInfo) { 1983 logi("processMergeFailed :: reason=" + reasonInfo); 1984 1985 ImsCall.Listener listener; 1986 synchronized(ImsCall.this) { 1987 // The logic simplifies if we can assume that this function is only called on 1988 // the merge host. 1989 if (!isMergeHost()) { 1990 loge("processMergeFailed :: We are not the merge host!"); 1991 return; 1992 } 1993 1994 // Try to clean up the transient session if it exists. 1995 if (mTransientConferenceSession != null) { 1996 mTransientConferenceSession.setListener(null); 1997 mTransientConferenceSession = null; 1998 } 1999 2000 listener = mListener; 2001 2002 // Ensure the calls being conferenced into the conference has isMerged = false. 2003 // Ensure any terminations are surfaced from this session. 2004 markCallAsMerged(true); 2005 setCallSessionMergePending(false); 2006 notifySessionTerminatedDuringMerge(); 2007 2008 // Perform the same cleanup on the merge peer if it exists. 2009 if (mMergePeer != null) { 2010 mMergePeer.markCallAsMerged(true); 2011 mMergePeer.setCallSessionMergePending(false); 2012 mMergePeer.notifySessionTerminatedDuringMerge(); 2013 } else { 2014 loge("processMergeFailed :: No merge peer!"); 2015 } 2016 2017 // Clear all the various flags around coordinating this merge. 2018 clearMergeInfo(); 2019 } 2020 if (listener != null) { 2021 try { 2022 listener.onCallMergeFailed(ImsCall.this, reasonInfo); 2023 } catch (Throwable t) { 2024 loge("processMergeFailed :: ", t); 2025 } 2026 } 2027 2028 return; 2029 } 2030 2031 private class ImsCallSessionListenerProxy extends ImsCallSession.Listener { 2032 @Override 2033 public void callSessionProgressing(ImsCallSession session, ImsStreamMediaProfile profile) { 2034 logi("callSessionProgressing :: session=" + session + " profile=" + profile); 2035 2036 if (isTransientConferenceSession(session)) { 2037 // If it is a transient (conference) session, there is no action for this signal. 2038 logi("callSessionProgressing :: not supported for transient conference session=" + 2039 session); 2040 return; 2041 } 2042 2043 ImsCall.Listener listener; 2044 2045 synchronized(ImsCall.this) { 2046 listener = mListener; 2047 mCallProfile.mMediaProfile.copyFrom(profile); 2048 } 2049 2050 if (listener != null) { 2051 try { 2052 listener.onCallProgressing(ImsCall.this); 2053 } catch (Throwable t) { 2054 loge("callSessionProgressing :: ", t); 2055 } 2056 } 2057 } 2058 2059 @Override 2060 public void callSessionStarted(ImsCallSession session, ImsCallProfile profile) { 2061 logi("callSessionStarted :: session=" + session + " profile=" + profile); 2062 2063 if (!isTransientConferenceSession(session)) { 2064 // In the case that we are in the middle of a merge (either host or peer), we have 2065 // closure as far as this call's primary session is concerned. If we are not 2066 // merging...its a NOOP. 2067 setCallSessionMergePending(false); 2068 } else { 2069 logi("callSessionStarted :: on transient session=" + session); 2070 return; 2071 } 2072 2073 if (isTransientConferenceSession(session)) { 2074 // No further processing is needed if this is the transient session. 2075 return; 2076 } 2077 2078 ImsCall.Listener listener; 2079 2080 synchronized(ImsCall.this) { 2081 listener = mListener; 2082 mCallProfile = profile; 2083 } 2084 2085 if (listener != null) { 2086 try { 2087 listener.onCallStarted(ImsCall.this); 2088 } catch (Throwable t) { 2089 loge("callSessionStarted :: ", t); 2090 } 2091 } 2092 } 2093 2094 @Override 2095 public void callSessionStartFailed(ImsCallSession session, ImsReasonInfo reasonInfo) { 2096 loge("callSessionStartFailed :: session=" + session + " reasonInfo=" + reasonInfo); 2097 2098 if (isTransientConferenceSession(session)) { 2099 // We should not get this callback for a transient session. 2100 logi("callSessionStartFailed :: not supported for transient conference session=" + 2101 session); 2102 return; 2103 } 2104 2105 ImsCall.Listener listener; 2106 2107 synchronized(ImsCall.this) { 2108 listener = mListener; 2109 mLastReasonInfo = reasonInfo; 2110 } 2111 2112 if (listener != null) { 2113 try { 2114 listener.onCallStartFailed(ImsCall.this, reasonInfo); 2115 } catch (Throwable t) { 2116 loge("callSessionStarted :: ", t); 2117 } 2118 } 2119 } 2120 2121 @Override 2122 public void callSessionTerminated(ImsCallSession session, ImsReasonInfo reasonInfo) { 2123 logi("callSessionTerminated :: session=" + session + " reasonInfo=" + reasonInfo); 2124 2125 if (isTransientConferenceSession(session)) { 2126 logi("callSessionTerminated :: on transient session=" + session); 2127 // This is bad, it should be treated much a callSessionMergeFailed since the 2128 // transient session only exists when in the process of a merge and the 2129 // termination of this session is effectively the end of the merge. 2130 processMergeFailed(reasonInfo); 2131 return; 2132 } 2133 2134 // Process the termination first. If we are in the midst of establishing a conference 2135 // call, we may bury this callback until we are done. If there so no conference 2136 // call, the code after this function will be a NOOP. 2137 processCallTerminated(reasonInfo); 2138 2139 // If session has terminated, it is no longer pending merge. 2140 setCallSessionMergePending(false); 2141 2142 } 2143 2144 @Override 2145 public void callSessionHeld(ImsCallSession session, ImsCallProfile profile) { 2146 logi("callSessionHeld :: session=" + session + "profile=" + profile); 2147 ImsCall.Listener listener; 2148 2149 synchronized(ImsCall.this) { 2150 // If the session was held, it is no longer pending a merge -- this means it could 2151 // not be merged into the conference and was held instead. 2152 setCallSessionMergePending(false); 2153 2154 mCallProfile = profile; 2155 2156 if (mUpdateRequest == UPDATE_HOLD_MERGE) { 2157 // This hold request was made to set the stage for a merge. 2158 mergeInternal(); 2159 return; 2160 } 2161 2162 mUpdateRequest = UPDATE_NONE; 2163 listener = mListener; 2164 } 2165 2166 if (listener != null) { 2167 try { 2168 listener.onCallHeld(ImsCall.this); 2169 } catch (Throwable t) { 2170 loge("callSessionHeld :: ", t); 2171 } 2172 } 2173 } 2174 2175 @Override 2176 public void callSessionHoldFailed(ImsCallSession session, ImsReasonInfo reasonInfo) { 2177 loge("callSessionHoldFailed :: session" + session + "reasonInfo=" + reasonInfo); 2178 2179 if (isTransientConferenceSession(session)) { 2180 // We should not get this callback for a transient session. 2181 logi("callSessionHoldFailed :: not supported for transient conference session=" + 2182 session); 2183 return; 2184 } 2185 2186 logi("callSessionHoldFailed :: session=" + session + 2187 ", reasonInfo=" + reasonInfo); 2188 2189 synchronized (mLockObj) { 2190 mHold = false; 2191 } 2192 2193 boolean isHoldForMerge = false; 2194 ImsCall.Listener listener; 2195 2196 synchronized(ImsCall.this) { 2197 if (mUpdateRequest == UPDATE_HOLD_MERGE) { 2198 isHoldForMerge = true; 2199 } 2200 2201 mUpdateRequest = UPDATE_NONE; 2202 listener = mListener; 2203 } 2204 2205 if (listener != null) { 2206 try { 2207 listener.onCallHoldFailed(ImsCall.this, reasonInfo); 2208 } catch (Throwable t) { 2209 loge("callSessionHoldFailed :: ", t); 2210 } 2211 } 2212 } 2213 2214 @Override 2215 public void callSessionHoldReceived(ImsCallSession session, ImsCallProfile profile) { 2216 logi("callSessionHoldReceived :: session=" + session + "profile=" + profile); 2217 2218 if (isTransientConferenceSession(session)) { 2219 // We should not get this callback for a transient session. 2220 logi("callSessionHoldReceived :: not supported for transient conference session=" + 2221 session); 2222 return; 2223 } 2224 2225 ImsCall.Listener listener; 2226 2227 synchronized(ImsCall.this) { 2228 listener = mListener; 2229 mCallProfile = profile; 2230 } 2231 2232 if (listener != null) { 2233 try { 2234 listener.onCallHoldReceived(ImsCall.this); 2235 } catch (Throwable t) { 2236 loge("callSessionHoldReceived :: ", t); 2237 } 2238 } 2239 } 2240 2241 @Override 2242 public void callSessionResumed(ImsCallSession session, ImsCallProfile profile) { 2243 logi("callSessionResumed :: session=" + session + "profile=" + profile); 2244 2245 if (isTransientConferenceSession(session)) { 2246 logi("callSessionResumed :: not supported for transient conference session=" + 2247 session); 2248 return; 2249 } 2250 2251 // If this call was pending a merge, it is not anymore. This is the case when we 2252 // are merging in a new call into an existing conference. 2253 setCallSessionMergePending(false); 2254 2255 // TOOD: When we are merging a new call into an existing conference we are waiting 2256 // for 2 triggers to let us know that the conference has been established, the first 2257 // is a termination for the new calls (since it is added to the conference) the second 2258 // would be a resume on the existing conference. If the resume comes first, then 2259 // we will make the onCallResumed() callback and its unclear how this will behave if 2260 // the termination has not come yet. 2261 2262 ImsCall.Listener listener; 2263 synchronized(ImsCall.this) { 2264 listener = mListener; 2265 mCallProfile = profile; 2266 mUpdateRequest = UPDATE_NONE; 2267 mHold = false; 2268 } 2269 2270 if (listener != null) { 2271 try { 2272 listener.onCallResumed(ImsCall.this); 2273 } catch (Throwable t) { 2274 loge("callSessionResumed :: ", t); 2275 } 2276 } 2277 } 2278 2279 @Override 2280 public void callSessionResumeFailed(ImsCallSession session, ImsReasonInfo reasonInfo) { 2281 loge("callSessionResumeFailed :: session=" + session + "reasonInfo=" + reasonInfo); 2282 2283 if (isTransientConferenceSession(session)) { 2284 logi("callSessionResumeFailed :: not supported for transient conference session=" + 2285 session); 2286 return; 2287 } 2288 2289 synchronized(mLockObj) { 2290 mHold = true; 2291 } 2292 2293 ImsCall.Listener listener; 2294 2295 synchronized(ImsCall.this) { 2296 listener = mListener; 2297 mUpdateRequest = UPDATE_NONE; 2298 } 2299 2300 if (listener != null) { 2301 try { 2302 listener.onCallResumeFailed(ImsCall.this, reasonInfo); 2303 } catch (Throwable t) { 2304 loge("callSessionResumeFailed :: ", t); 2305 } 2306 } 2307 } 2308 2309 @Override 2310 public void callSessionResumeReceived(ImsCallSession session, ImsCallProfile profile) { 2311 logi("callSessionResumeReceived :: session=" + session + "profile=" + profile); 2312 2313 if (isTransientConferenceSession(session)) { 2314 logi("callSessionResumeReceived :: not supported for transient conference session=" + 2315 session); 2316 return; 2317 } 2318 2319 ImsCall.Listener listener; 2320 2321 synchronized(ImsCall.this) { 2322 listener = mListener; 2323 mCallProfile = profile; 2324 } 2325 2326 if (listener != null) { 2327 try { 2328 listener.onCallResumeReceived(ImsCall.this); 2329 } catch (Throwable t) { 2330 loge("callSessionResumeReceived :: ", t); 2331 } 2332 } 2333 } 2334 2335 @Override 2336 public void callSessionMergeStarted(ImsCallSession session, 2337 ImsCallSession newSession, ImsCallProfile profile) { 2338 logi("callSessionMergeStarted :: session=" + session + " newSession=" + newSession + 2339 ", profile=" + profile); 2340 2341 return; 2342 } 2343 2344 /* 2345 * This method check if session exists as a session on the current 2346 * ImsCall or its counterpart if it is in the process of a conference 2347 */ 2348 private boolean doesCallSessionExistsInMerge(ImsCallSession cs) { 2349 String callId = cs.getCallId(); 2350 return ((isMergeHost() && Objects.equals(mMergePeer.mSession.getCallId(), callId)) || 2351 (isMergePeer() && Objects.equals(mMergeHost.mSession.getCallId(), callId)) || 2352 Objects.equals(mSession.getCallId(), callId)); 2353 } 2354 2355 /** 2356 * We received a callback from ImsCallSession that merge completed. 2357 * @param newSession - this session can have 2 values based on the below scenarios 2358 * 2359 * Conference Scenarios : 2360 * Case 1 - 3 way success case 2361 * Case 2 - 3 way success case but held call fails to merge 2362 * Case 3 - 3 way success case but active call fails to merge 2363 * case 4 - 4 way success case, where merge is initiated on the foreground single-party 2364 * call and the conference (mergeHost) is the background call. 2365 * case 5 - 4 way success case, where merge is initiated on the foreground conference 2366 * call (mergeHost) and the single party call is in the background. 2367 * 2368 * Conference Result: 2369 * session : new session after conference 2370 * newSession = new session for case 1, 2, 3. 2371 * Should be considered as mTransientConferencession 2372 * newSession = Active conference session for case 5 will be null 2373 * mergehost was foreground call 2374 * mTransientConferencession will be null 2375 * newSession = Active conference session for case 4 will be null 2376 * mergeHost was background call 2377 * mTransientConferencession will be null 2378 */ 2379 @Override 2380 public void callSessionMergeComplete(ImsCallSession newSession) { 2381 logi("callSessionMergeComplete :: newSession =" + newSession); 2382 if (!isMergeHost()) { 2383 // Handles case 4 2384 mMergeHost.processMergeComplete(); 2385 } else { 2386 // Handles case 1, 2, 3 2387 if (newSession != null) { 2388 mTransientConferenceSession = doesCallSessionExistsInMerge(newSession) ? 2389 null: newSession; 2390 } 2391 // Handles case 5 2392 processMergeComplete(); 2393 } 2394 } 2395 2396 @Override 2397 public void callSessionMergeFailed(ImsCallSession session, ImsReasonInfo reasonInfo) { 2398 loge("callSessionMergeFailed :: session=" + session + "reasonInfo=" + reasonInfo); 2399 2400 // Its possible that there could be threading issues with the other thread handling 2401 // the other call. This could affect our state. 2402 synchronized (ImsCall.this) { 2403 // Let's tell our parent ImsCall that the merge has failed and we need to clean 2404 // up any temporary, transient state. Note this only gets called for an initial 2405 // conference. If a merge into an existing conference fails, the two sessions will 2406 // just go back to their original state (ACTIVE or HELD). 2407 if (isMergeHost()) { 2408 processMergeFailed(reasonInfo); 2409 } else if (mMergeHost != null) { 2410 mMergeHost.processMergeFailed(reasonInfo); 2411 } else { 2412 loge("callSessionMergeFailed :: No merge host for this conference!"); 2413 } 2414 } 2415 } 2416 2417 @Override 2418 public void callSessionUpdated(ImsCallSession session, ImsCallProfile profile) { 2419 logi("callSessionUpdated :: session=" + session + " profile=" + profile); 2420 2421 if (isTransientConferenceSession(session)) { 2422 logi("callSessionUpdated :: not supported for transient conference session=" + 2423 session); 2424 return; 2425 } 2426 2427 ImsCall.Listener listener; 2428 2429 synchronized(ImsCall.this) { 2430 listener = mListener; 2431 mCallProfile = profile; 2432 } 2433 2434 if (listener != null) { 2435 try { 2436 listener.onCallUpdated(ImsCall.this); 2437 } catch (Throwable t) { 2438 loge("callSessionUpdated :: ", t); 2439 } 2440 } 2441 } 2442 2443 @Override 2444 public void callSessionUpdateFailed(ImsCallSession session, ImsReasonInfo reasonInfo) { 2445 loge("callSessionUpdateFailed :: session=" + session + " reasonInfo=" + reasonInfo); 2446 2447 if (isTransientConferenceSession(session)) { 2448 logi("callSessionUpdateFailed :: not supported for transient conference session=" + 2449 session); 2450 return; 2451 } 2452 2453 ImsCall.Listener listener; 2454 2455 synchronized(ImsCall.this) { 2456 listener = mListener; 2457 mUpdateRequest = UPDATE_NONE; 2458 } 2459 2460 if (listener != null) { 2461 try { 2462 listener.onCallUpdateFailed(ImsCall.this, reasonInfo); 2463 } catch (Throwable t) { 2464 loge("callSessionUpdateFailed :: ", t); 2465 } 2466 } 2467 } 2468 2469 @Override 2470 public void callSessionUpdateReceived(ImsCallSession session, ImsCallProfile profile) { 2471 logi("callSessionUpdateReceived :: session=" + session + " profile=" + profile); 2472 2473 if (isTransientConferenceSession(session)) { 2474 logi("callSessionUpdateReceived :: not supported for transient conference " + 2475 "session=" + session); 2476 return; 2477 } 2478 2479 ImsCall.Listener listener; 2480 2481 synchronized(ImsCall.this) { 2482 listener = mListener; 2483 mProposedCallProfile = profile; 2484 mUpdateRequest = UPDATE_UNSPECIFIED; 2485 } 2486 2487 if (listener != null) { 2488 try { 2489 listener.onCallUpdateReceived(ImsCall.this); 2490 } catch (Throwable t) { 2491 loge("callSessionUpdateReceived :: ", t); 2492 } 2493 } 2494 } 2495 2496 @Override 2497 public void callSessionConferenceExtended(ImsCallSession session, ImsCallSession newSession, 2498 ImsCallProfile profile) { 2499 logi("callSessionConferenceExtended :: session=" + session + " newSession=" + 2500 newSession + ", profile=" + profile); 2501 2502 if (isTransientConferenceSession(session)) { 2503 logi("callSessionConferenceExtended :: not supported for transient conference " + 2504 "session=" + session); 2505 return; 2506 } 2507 2508 ImsCall newCall = createNewCall(newSession, profile); 2509 2510 if (newCall == null) { 2511 callSessionConferenceExtendFailed(session, new ImsReasonInfo()); 2512 return; 2513 } 2514 2515 ImsCall.Listener listener; 2516 2517 synchronized(ImsCall.this) { 2518 listener = mListener; 2519 mUpdateRequest = UPDATE_NONE; 2520 } 2521 2522 if (listener != null) { 2523 try { 2524 listener.onCallConferenceExtended(ImsCall.this, newCall); 2525 } catch (Throwable t) { 2526 loge("callSessionConferenceExtended :: ", t); 2527 } 2528 } 2529 } 2530 2531 @Override 2532 public void callSessionConferenceExtendFailed(ImsCallSession session, 2533 ImsReasonInfo reasonInfo) { 2534 loge("callSessionConferenceExtendFailed :: reasonInfo=" + reasonInfo); 2535 2536 if (isTransientConferenceSession(session)) { 2537 logi("callSessionConferenceExtendFailed :: not supported for transient " + 2538 "conference session=" + session); 2539 return; 2540 } 2541 2542 ImsCall.Listener listener; 2543 2544 synchronized(ImsCall.this) { 2545 listener = mListener; 2546 mUpdateRequest = UPDATE_NONE; 2547 } 2548 2549 if (listener != null) { 2550 try { 2551 listener.onCallConferenceExtendFailed(ImsCall.this, reasonInfo); 2552 } catch (Throwable t) { 2553 loge("callSessionConferenceExtendFailed :: ", t); 2554 } 2555 } 2556 } 2557 2558 @Override 2559 public void callSessionConferenceExtendReceived(ImsCallSession session, 2560 ImsCallSession newSession, ImsCallProfile profile) { 2561 logi("callSessionConferenceExtendReceived :: newSession=" + newSession + 2562 ", profile=" + profile); 2563 2564 if (isTransientConferenceSession(session)) { 2565 logi("callSessionConferenceExtendReceived :: not supported for transient " + 2566 "conference session" + session); 2567 return; 2568 } 2569 2570 ImsCall newCall = createNewCall(newSession, profile); 2571 2572 if (newCall == null) { 2573 // Should all the calls be terminated...??? 2574 return; 2575 } 2576 2577 ImsCall.Listener listener; 2578 2579 synchronized(ImsCall.this) { 2580 listener = mListener; 2581 } 2582 2583 if (listener != null) { 2584 try { 2585 listener.onCallConferenceExtendReceived(ImsCall.this, newCall); 2586 } catch (Throwable t) { 2587 loge("callSessionConferenceExtendReceived :: ", t); 2588 } 2589 } 2590 } 2591 2592 @Override 2593 public void callSessionInviteParticipantsRequestDelivered(ImsCallSession session) { 2594 logi("callSessionInviteParticipantsRequestDelivered ::"); 2595 2596 if (isTransientConferenceSession(session)) { 2597 logi("callSessionInviteParticipantsRequestDelivered :: not supported for " + 2598 "conference session=" + session); 2599 return; 2600 } 2601 2602 ImsCall.Listener listener; 2603 2604 synchronized(ImsCall.this) { 2605 listener = mListener; 2606 } 2607 2608 if (listener != null) { 2609 try { 2610 listener.onCallInviteParticipantsRequestDelivered(ImsCall.this); 2611 } catch (Throwable t) { 2612 loge("callSessionInviteParticipantsRequestDelivered :: ", t); 2613 } 2614 } 2615 } 2616 2617 @Override 2618 public void callSessionInviteParticipantsRequestFailed(ImsCallSession session, 2619 ImsReasonInfo reasonInfo) { 2620 loge("callSessionInviteParticipantsRequestFailed :: reasonInfo=" + reasonInfo); 2621 2622 if (isTransientConferenceSession(session)) { 2623 logi("callSessionInviteParticipantsRequestFailed :: not supported for " + 2624 "conference session=" + session); 2625 return; 2626 } 2627 2628 ImsCall.Listener listener; 2629 2630 synchronized(ImsCall.this) { 2631 listener = mListener; 2632 } 2633 2634 if (listener != null) { 2635 try { 2636 listener.onCallInviteParticipantsRequestFailed(ImsCall.this, reasonInfo); 2637 } catch (Throwable t) { 2638 loge("callSessionInviteParticipantsRequestFailed :: ", t); 2639 } 2640 } 2641 } 2642 2643 @Override 2644 public void callSessionRemoveParticipantsRequestDelivered(ImsCallSession session) { 2645 logi("callSessionRemoveParticipantsRequestDelivered ::"); 2646 2647 if (isTransientConferenceSession(session)) { 2648 logi("callSessionRemoveParticipantsRequestDelivered :: not supported for " + 2649 "conference session=" + session); 2650 return; 2651 } 2652 2653 ImsCall.Listener listener; 2654 2655 synchronized(ImsCall.this) { 2656 listener = mListener; 2657 } 2658 2659 if (listener != null) { 2660 try { 2661 listener.onCallRemoveParticipantsRequestDelivered(ImsCall.this); 2662 } catch (Throwable t) { 2663 loge("callSessionRemoveParticipantsRequestDelivered :: ", t); 2664 } 2665 } 2666 } 2667 2668 @Override 2669 public void callSessionRemoveParticipantsRequestFailed(ImsCallSession session, 2670 ImsReasonInfo reasonInfo) { 2671 loge("callSessionRemoveParticipantsRequestFailed :: reasonInfo=" + reasonInfo); 2672 2673 if (isTransientConferenceSession(session)) { 2674 logi("callSessionRemoveParticipantsRequestFailed :: not supported for " + 2675 "conference session=" + session); 2676 return; 2677 } 2678 2679 ImsCall.Listener listener; 2680 2681 synchronized(ImsCall.this) { 2682 listener = mListener; 2683 } 2684 2685 if (listener != null) { 2686 try { 2687 listener.onCallRemoveParticipantsRequestFailed(ImsCall.this, reasonInfo); 2688 } catch (Throwable t) { 2689 loge("callSessionRemoveParticipantsRequestFailed :: ", t); 2690 } 2691 } 2692 } 2693 2694 @Override 2695 public void callSessionConferenceStateUpdated(ImsCallSession session, 2696 ImsConferenceState state) { 2697 logi("callSessionConferenceStateUpdated :: state=" + state); 2698 2699 conferenceStateUpdated(state); 2700 } 2701 2702 @Override 2703 public void callSessionUssdMessageReceived(ImsCallSession session, int mode, 2704 String ussdMessage) { 2705 logi("callSessionUssdMessageReceived :: mode=" + mode + ", ussdMessage=" + 2706 ussdMessage); 2707 2708 if (isTransientConferenceSession(session)) { 2709 logi("callSessionUssdMessageReceived :: not supported for transient " + 2710 "conference session=" + session); 2711 return; 2712 } 2713 2714 ImsCall.Listener listener; 2715 2716 synchronized(ImsCall.this) { 2717 listener = mListener; 2718 } 2719 2720 if (listener != null) { 2721 try { 2722 listener.onCallUssdMessageReceived(ImsCall.this, mode, ussdMessage); 2723 } catch (Throwable t) { 2724 loge("callSessionUssdMessageReceived :: ", t); 2725 } 2726 } 2727 } 2728 2729 @Override 2730 public void callSessionTtyModeReceived(ImsCallSession session, int mode) { 2731 logi("callSessionTtyModeReceived :: mode=" + mode); 2732 2733 ImsCall.Listener listener; 2734 2735 synchronized(ImsCall.this) { 2736 listener = mListener; 2737 } 2738 2739 if (listener != null) { 2740 try { 2741 listener.onCallSessionTtyModeReceived(ImsCall.this, mode); 2742 } catch (Throwable t) { 2743 loge("callSessionTtyModeReceived :: ", t); 2744 } 2745 } 2746 } 2747 2748 /** 2749 * Notifies of a change to the multiparty state for this {@code ImsCallSession}. 2750 * 2751 * @param session The call session. 2752 * @param isMultiParty {@code true} if the session became multiparty, {@code false} 2753 * otherwise. 2754 */ 2755 @Override 2756 public void callSessionMultipartyStateChanged(ImsCallSession session, 2757 boolean isMultiParty) { 2758 if (VDBG) { 2759 logi("callSessionMultipartyStateChanged isMultiParty: " + (isMultiParty ? "Y" 2760 : "N")); 2761 } 2762 2763 ImsCall.Listener listener; 2764 2765 synchronized(ImsCall.this) { 2766 listener = mListener; 2767 } 2768 2769 if (listener != null) { 2770 try { 2771 listener.onMultipartyStateChanged(ImsCall.this, isMultiParty); 2772 } catch (Throwable t) { 2773 loge("callSessionMultipartyStateChanged :: ", t); 2774 } 2775 } 2776 } 2777 2778 public void callSessionHandover(ImsCallSession session, int srcAccessTech, 2779 int targetAccessTech, ImsReasonInfo reasonInfo) { 2780 logi("callSessionHandover :: session=" + session + ", srcAccessTech=" + 2781 srcAccessTech + ", targetAccessTech=" + targetAccessTech + ", reasonInfo=" + 2782 reasonInfo); 2783 2784 ImsCall.Listener listener; 2785 2786 synchronized(ImsCall.this) { 2787 listener = mListener; 2788 } 2789 2790 if (listener != null) { 2791 try { 2792 listener.onCallHandover(ImsCall.this, srcAccessTech, targetAccessTech, 2793 reasonInfo); 2794 } catch (Throwable t) { 2795 loge("callSessionHandover :: ", t); 2796 } 2797 } 2798 } 2799 2800 @Override 2801 public void callSessionHandoverFailed(ImsCallSession session, int srcAccessTech, 2802 int targetAccessTech, ImsReasonInfo reasonInfo) { 2803 loge("callSessionHandoverFailed :: session=" + session + ", srcAccessTech=" + 2804 srcAccessTech + ", targetAccessTech=" + targetAccessTech + ", reasonInfo=" + 2805 reasonInfo); 2806 2807 ImsCall.Listener listener; 2808 2809 synchronized(ImsCall.this) { 2810 listener = mListener; 2811 } 2812 2813 if (listener != null) { 2814 try { 2815 listener.onCallHandoverFailed(ImsCall.this, srcAccessTech, targetAccessTech, 2816 reasonInfo); 2817 } catch (Throwable t) { 2818 loge("callSessionHandoverFailed :: ", t); 2819 } 2820 } 2821 } 2822 2823 @Override 2824 public void callSessionSuppServiceReceived(ImsCallSession session, 2825 ImsSuppServiceNotification suppServiceInfo ) { 2826 if (isTransientConferenceSession(session)) { 2827 logi("callSessionSuppServiceReceived :: not supported for transient conference" 2828 + " session=" + session); 2829 return; 2830 } 2831 2832 logi("callSessionSuppServiceReceived :: session=" + session + 2833 ", suppServiceInfo" + suppServiceInfo); 2834 2835 ImsCall.Listener listener; 2836 2837 synchronized(ImsCall.this) { 2838 listener = mListener; 2839 } 2840 2841 if (listener != null) { 2842 try { 2843 listener.onCallSuppServiceReceived(ImsCall.this, suppServiceInfo); 2844 } catch (Throwable t) { 2845 loge("callSessionSuppServiceReceived :: ", t); 2846 } 2847 } 2848 } 2849 } 2850 2851 /** 2852 * Report a new conference state to the current {@link ImsCall} and inform listeners of the 2853 * change. Marked as {@code VisibleForTesting} so that the 2854 * {@code com.android.internal.telephony.TelephonyTester} class can inject a test conference 2855 * event package into a regular ongoing IMS call. 2856 * 2857 * @param state The {@link ImsConferenceState}. 2858 */ 2859 @VisibleForTesting 2860 public void conferenceStateUpdated(ImsConferenceState state) { 2861 Listener listener; 2862 2863 synchronized(this) { 2864 notifyConferenceStateUpdated(state); 2865 listener = mListener; 2866 } 2867 2868 if (listener != null) { 2869 try { 2870 listener.onCallConferenceStateUpdated(this, state); 2871 } catch (Throwable t) { 2872 loge("callSessionConferenceStateUpdated :: ", t); 2873 } 2874 } 2875 } 2876 2877 /** 2878 * Provides a human-readable string representation of an update request. 2879 * 2880 * @param updateRequest The update request. 2881 * @return The string representation. 2882 */ 2883 private String updateRequestToString(int updateRequest) { 2884 switch (updateRequest) { 2885 case UPDATE_NONE: 2886 return "NONE"; 2887 case UPDATE_HOLD: 2888 return "HOLD"; 2889 case UPDATE_HOLD_MERGE: 2890 return "HOLD_MERGE"; 2891 case UPDATE_RESUME: 2892 return "RESUME"; 2893 case UPDATE_MERGE: 2894 return "MERGE"; 2895 case UPDATE_EXTEND_TO_CONFERENCE: 2896 return "EXTEND_TO_CONFERENCE"; 2897 case UPDATE_UNSPECIFIED: 2898 return "UNSPECIFIED"; 2899 default: 2900 return "UNKNOWN"; 2901 } 2902 } 2903 2904 /** 2905 * Clears the merge peer for this call, ensuring that the peer's connection to this call is also 2906 * severed at the same time. 2907 */ 2908 private void clearMergeInfo() { 2909 if (CONF_DBG) { 2910 logi("clearMergeInfo :: clearing all merge info"); 2911 } 2912 2913 // First clear out the merge partner then clear ourselves out. 2914 if (mMergeHost != null) { 2915 mMergeHost.mMergePeer = null; 2916 mMergeHost.mUpdateRequest = UPDATE_NONE; 2917 mMergeHost.mCallSessionMergePending = false; 2918 } 2919 if (mMergePeer != null) { 2920 mMergePeer.mMergeHost = null; 2921 mMergePeer.mUpdateRequest = UPDATE_NONE; 2922 mMergePeer.mCallSessionMergePending = false; 2923 } 2924 mMergeHost = null; 2925 mMergePeer = null; 2926 mUpdateRequest = UPDATE_NONE; 2927 mCallSessionMergePending = false; 2928 } 2929 2930 /** 2931 * Sets the merge peer for the current call. The merge peer is the background call that will be 2932 * merged into this call. On the merge peer, sets the merge host to be this call. 2933 * 2934 * @param mergePeer The peer call to be merged into this one. 2935 */ 2936 private void setMergePeer(ImsCall mergePeer) { 2937 mMergePeer = mergePeer; 2938 mMergeHost = null; 2939 2940 mergePeer.mMergeHost = ImsCall.this; 2941 mergePeer.mMergePeer = null; 2942 } 2943 2944 /** 2945 * Sets the merge hody for the current call. The merge host is the foreground call this call 2946 * will be merged into. On the merge host, sets the merge peer to be this call. 2947 * 2948 * @param mergeHost The merge host this call will be merged into. 2949 */ 2950 public void setMergeHost(ImsCall mergeHost) { 2951 mMergeHost = mergeHost; 2952 mMergePeer = null; 2953 2954 mergeHost.mMergeHost = null; 2955 mergeHost.mMergePeer = ImsCall.this; 2956 } 2957 2958 /** 2959 * Determines if the current call is in the process of merging with another call or conference. 2960 * 2961 * @return {@code true} if in the process of merging. 2962 */ 2963 private boolean isMerging() { 2964 return mMergePeer != null || mMergeHost != null; 2965 } 2966 2967 /** 2968 * Determines if the current call is the host of the merge. 2969 * 2970 * @return {@code true} if the call is the merge host. 2971 */ 2972 private boolean isMergeHost() { 2973 return mMergePeer != null && mMergeHost == null; 2974 } 2975 2976 /** 2977 * Determines if the current call is the peer of the merge. 2978 * 2979 * @return {@code true} if the call is the merge peer. 2980 */ 2981 private boolean isMergePeer() { 2982 return mMergePeer == null && mMergeHost != null; 2983 } 2984 2985 /** 2986 * Determines if the call session is pending merge into a conference or not. 2987 * 2988 * @return {@code true} if a merge into a conference is pending, {@code false} otherwise. 2989 */ 2990 private boolean isCallSessionMergePending() { 2991 return mCallSessionMergePending; 2992 } 2993 2994 /** 2995 * Sets flag indicating whether the call session is pending merge into a conference or not. 2996 * 2997 * @param callSessionMergePending {@code true} if a merge into the conference is pending, 2998 * {@code false} otherwise. 2999 */ 3000 private void setCallSessionMergePending(boolean callSessionMergePending) { 3001 mCallSessionMergePending = callSessionMergePending; 3002 } 3003 3004 /** 3005 * Determines if there is a conference merge in process. If there is a merge in process, 3006 * determines if both the merge host and peer sessions have completed the merge process. This 3007 * means that we have received terminate or hold signals for the sessions, indicating that they 3008 * are no longer in the process of being merged into the conference. 3009 * <p> 3010 * The sessions are considered to have merged if: both calls still have merge peer/host 3011 * relationships configured, both sessions are not waiting to be merged into the conference, 3012 * and the transient conference session is alive in the case of an initial conference. 3013 * 3014 * @return {@code true} where the host and peer sessions have finished merging into the 3015 * conference, {@code false} if the merge has not yet completed, and {@code false} if there 3016 * is no conference merge in progress. 3017 */ 3018 private boolean shouldProcessConferenceResult() { 3019 boolean areMergeTriggersDone = false; 3020 3021 synchronized (ImsCall.this) { 3022 // if there is a merge going on, then the merge host/peer relationships should have been 3023 // set up. This works for both the initial conference or merging a call into an 3024 // existing conference. 3025 if (!isMergeHost() && !isMergePeer()) { 3026 if (CONF_DBG) { 3027 loge("shouldProcessConferenceResult :: no merge in progress"); 3028 } 3029 return false; 3030 } 3031 3032 // There is a merge in progress, so check the sessions to ensure: 3033 // 1. Both calls have completed being merged (or failing to merge) into the conference. 3034 // 2. The transient conference session is alive. 3035 if (isMergeHost()) { 3036 if (CONF_DBG) { 3037 logi("shouldProcessConferenceResult :: We are a merge host"); 3038 logi("shouldProcessConferenceResult :: Here is the merge peer=" + mMergePeer); 3039 } 3040 areMergeTriggersDone = !isCallSessionMergePending() && 3041 !mMergePeer.isCallSessionMergePending(); 3042 if (!isMultiparty()) { 3043 // Only check the transient session when there is no existing conference 3044 areMergeTriggersDone &= isSessionAlive(mTransientConferenceSession); 3045 } 3046 } else if (isMergePeer()) { 3047 if (CONF_DBG) { 3048 logi("shouldProcessConferenceResult :: We are a merge peer"); 3049 logi("shouldProcessConferenceResult :: Here is the merge host=" + mMergeHost); 3050 } 3051 areMergeTriggersDone = !isCallSessionMergePending() && 3052 !mMergeHost.isCallSessionMergePending(); 3053 if (!mMergeHost.isMultiparty()) { 3054 // Only check the transient session when there is no existing conference 3055 areMergeTriggersDone &= isSessionAlive(mMergeHost.mTransientConferenceSession); 3056 } else { 3057 // This else block is a special case for Verizon to handle these steps 3058 // 1. Establish a conference call. 3059 // 2. Add a new call (conference in in BG) 3060 // 3. Swap (conference active on FG) 3061 // 4. Merge 3062 // What happens here is that the BG call gets a terminated callback 3063 // because it was added to the conference. I've seen where 3064 // the FG gets no callback at all because its already active. 3065 // So if we continue to wait for it to set its isCallSessionMerging 3066 // flag to false...we'll be waiting forever. 3067 areMergeTriggersDone = !isCallSessionMergePending(); 3068 } 3069 } else { 3070 // Realistically this shouldn't happen, but best to be safe. 3071 loge("shouldProcessConferenceResult : merge in progress but call is neither" + 3072 " host nor peer."); 3073 } 3074 if (CONF_DBG) { 3075 logi("shouldProcessConferenceResult :: returning:" + 3076 (areMergeTriggersDone ? "true" : "false")); 3077 } 3078 } 3079 return areMergeTriggersDone; 3080 } 3081 3082 /** 3083 * Provides a string representation of the {@link ImsCall}. Primarily intended for use in log 3084 * statements. 3085 * 3086 * @return String representation of call. 3087 */ 3088 @Override 3089 public String toString() { 3090 StringBuilder sb = new StringBuilder(); 3091 sb.append("[ImsCall objId:"); 3092 sb.append(System.identityHashCode(this)); 3093 sb.append(" onHold:"); 3094 sb.append(isOnHold() ? "Y" : "N"); 3095 sb.append(" mute:"); 3096 sb.append(isMuted() ? "Y" : "N"); 3097 sb.append(" updateRequest:"); 3098 sb.append(updateRequestToString(mUpdateRequest)); 3099 sb.append(" merging:"); 3100 sb.append(isMerging() ? "Y" : "N"); 3101 if (isMerging()) { 3102 if (isMergePeer()) { 3103 sb.append("P"); 3104 } else { 3105 sb.append("H"); 3106 } 3107 } 3108 sb.append(" merge action pending:"); 3109 sb.append(isCallSessionMergePending() ? "Y" : "N"); 3110 sb.append(" merged:"); 3111 sb.append(isMerged() ? "Y" : "N"); 3112 sb.append(" multiParty:"); 3113 sb.append(isMultiparty() ? "Y" : "N"); 3114 sb.append(" confHost:"); 3115 sb.append(isConferenceHost() ? "Y" : "N"); 3116 sb.append(" buried term:"); 3117 sb.append(mSessionEndDuringMerge ? "Y" : "N"); 3118 sb.append(" session:"); 3119 sb.append(mSession); 3120 sb.append(" transientSession:"); 3121 sb.append(mTransientConferenceSession); 3122 sb.append("]"); 3123 return sb.toString(); 3124 } 3125 3126 private void throwImsException(Throwable t, int code) throws ImsException { 3127 if (t instanceof ImsException) { 3128 throw (ImsException) t; 3129 } else { 3130 throw new ImsException(String.valueOf(code), t, code); 3131 } 3132 } 3133 3134 /** 3135 * Append the ImsCall information to the provided string. Usefull for as a logging helper. 3136 * @param s The original string 3137 * @return The original string with {@code ImsCall} information appended to it. 3138 */ 3139 private String appendImsCallInfoToString(String s) { 3140 StringBuilder sb = new StringBuilder(); 3141 sb.append(s); 3142 sb.append(" ImsCall="); 3143 sb.append(ImsCall.this); 3144 return sb.toString(); 3145 } 3146 3147 /** 3148 * Log a string to the radio buffer at the info level. 3149 * @param s The message to log 3150 */ 3151 private void logi(String s) { 3152 Log.i(TAG, appendImsCallInfoToString(s)); 3153 } 3154 3155 /** 3156 * Log a string to the radio buffer at the debug level. 3157 * @param s The message to log 3158 */ 3159 private void logd(String s) { 3160 Log.d(TAG, appendImsCallInfoToString(s)); 3161 } 3162 3163 /** 3164 * Log a string to the radio buffer at the verbose level. 3165 * @param s The message to log 3166 */ 3167 private void logv(String s) { 3168 Log.v(TAG, appendImsCallInfoToString(s)); 3169 } 3170 3171 /** 3172 * Log a string to the radio buffer at the error level. 3173 * @param s The message to log 3174 */ 3175 private void loge(String s) { 3176 Log.e(TAG, appendImsCallInfoToString(s)); 3177 } 3178 3179 /** 3180 * Log a string to the radio buffer at the error level with a throwable 3181 * @param s The message to log 3182 * @param t The associated throwable 3183 */ 3184 private void loge(String s, Throwable t) { 3185 Log.e(TAG, appendImsCallInfoToString(s), t); 3186 } 3187 3188} 3189